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• How to Write a Literature Review | Guide, Examples, & Templates

How to Write a Literature Review | Guide, Examples, & Templates

Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates, and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.

• Quick Run-through
• Step 1 & 2

When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and its scholarly context
• Develop a theoretical framework and methodology for your research
• Position your work in relation to other researchers and theorists
• Show how your research addresses a gap or contributes to a debate
• Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.

Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.

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See an example

Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .

Make a list of keywords

Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can also use boolean operators to help narrow down your search.

Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models, and methods?
• Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.

You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.

There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.

Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, you can follow these tips:

• Summarize and synthesize: give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: don’t just paraphrase other researchers — add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically evaluate: mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: use transition words and topic sentences to draw connections, comparisons and contrasts

In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.

When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !

This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.

Scribbr slides are free to use, customize, and distribute for educational purposes.

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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.

• Sampling methods
• Simple random sampling
• Stratified sampling
• Cluster sampling
• Likert scales
• Reproducibility

 Statistics

• Null hypothesis
• Statistical power
• Probability distribution
• Effect size
• Poisson distribution

Research bias

• Optimism bias
• Cognitive bias
• Implicit bias
• Hawthorne effect
• Anchoring bias
• Explicit bias

A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarize yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other  academic texts , with an introduction , a main body, and a conclusion .

An  annotated bibliography is a list of  source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a  paper .  

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15 Literature Review Examples

Literature reviews are a necessary step in a research process and often required when writing your research proposal . They involve gathering, analyzing, and evaluating existing knowledge about a topic in order to find gaps in the literature where future studies will be needed.

Ideally, once you have completed your literature review, you will be able to identify how your research project can build upon and extend existing knowledge in your area of study.

Generally, for my undergraduate research students, I recommend a narrative review, where themes can be generated in order for the students to develop sufficient understanding of the topic so they can build upon the themes using unique methods or novel research questions.

If you’re in the process of writing a literature review, I have developed a literature review template for you to use – it’s a huge time-saver and walks you through how to write a literature review step-by-step:

Get your time-saving templates here to write your own literature review.

Literature Review Examples

For the following types of literature review, I present an explanation and overview of the type, followed by links to some real-life literature reviews on the topics.

1. Narrative Review Examples

Also known as a traditional literature review, the narrative review provides a broad overview of the studies done on a particular topic.

It often includes both qualitative and quantitative studies and may cover a wide range of years.

The narrative review’s purpose is to identify commonalities, gaps, and contradictions in the literature .

I recommend to my students that they should gather their studies together, take notes on each study, then try to group them by themes that form the basis for the review (see my step-by-step instructions at the end of the article).

Example Study

Title: Communication in healthcare: a narrative review of the literature and practical recommendations

Citation: Vermeir, P., Vandijck, D., Degroote, S., Peleman, R., Verhaeghe, R., Mortier, E., … & Vogelaers, D. (2015). Communication in healthcare: a narrative review of the literature and practical recommendations. International journal of clinical practice , 69 (11), 1257-1267.

Source: https://onlinelibrary.wiley.com/doi/pdf/10.1111/ijcp.12686  

Overview: This narrative review analyzed themes emerging from 69 articles about communication in healthcare contexts. Five key themes were found in the literature: poor communication can lead to various negative outcomes, discontinuity of care, compromise of patient safety, patient dissatisfaction, and inefficient use of resources. After presenting the key themes, the authors recommend that practitioners need to approach healthcare communication in a more structured way, such as by ensuring there is a clear understanding of who is in charge of ensuring effective communication in clinical settings.

Other Examples

• Burnout in United States Healthcare Professionals: A Narrative Review (Reith, 2018) – read here
• Examining the Presence, Consequences, and Reduction of Implicit Bias in Health Care: A Narrative Review (Zestcott, Blair & Stone, 2016) – read here
• A Narrative Review of School-Based Physical Activity for Enhancing Cognition and Learning (Mavilidi et al., 2018) – read here
• A narrative review on burnout experienced by medical students and residents (Dyrbye & Shanafelt, 2015) – read here

2. Systematic Review Examples

This type of literature review is more structured and rigorous than a narrative review. It involves a detailed and comprehensive plan and search strategy derived from a set of specified research questions.

The key way you’d know a systematic review compared to a narrative review is in the methodology: the systematic review will likely have a very clear criteria for how the studies were collected, and clear explanations of exclusion/inclusion criteria. 

The goal is to gather the maximum amount of valid literature on the topic, filter out invalid or low-quality reviews, and minimize bias. Ideally, this will provide more reliable findings, leading to higher-quality conclusions and recommendations for further research.

You may note from the examples below that the ‘method’ sections in systematic reviews tend to be much more explicit, often noting rigid inclusion/exclusion criteria and exact keywords used in searches.

Title: The importance of food naturalness for consumers: Results of a systematic review  

Citation: Roman, S., Sánchez-Siles, L. M., & Siegrist, M. (2017). The importance of food naturalness for consumers: Results of a systematic review. Trends in food science & technology , 67 , 44-57.

Source: https://www.sciencedirect.com/science/article/pii/S092422441730122X  

Overview: This systematic review included 72 studies of food naturalness to explore trends in the literature about its importance for consumers. Keywords used in the data search included: food, naturalness, natural content, and natural ingredients. Studies were included if they examined consumers’ preference for food naturalness and contained empirical data. The authors found that the literature lacks clarity about how naturalness is defined and measured, but also found that food consumption is significantly influenced by perceived naturalness of goods.

• A systematic review of research on online teaching and learning from 2009 to 2018 (Martin, Sun & Westine, 2020) – read here
• Where Is Current Research on Blockchain Technology? (Yli-Huumo et al., 2016) – read here
• Universities—industry collaboration: A systematic review (Ankrah & Al-Tabbaa, 2015) – read here
• Internet of Things Applications: A Systematic Review (Asghari, Rahmani & Javadi, 2019) – read here

3. Meta-analysis

This is a type of systematic review that uses statistical methods to combine and summarize the results of several studies.

Due to its robust methodology, a meta-analysis is often considered the ‘gold standard’ of secondary research , as it provides a more precise estimate of a treatment effect than any individual study contributing to the pooled analysis.

Furthermore, by aggregating data from a range of studies, a meta-analysis can identify patterns, disagreements, or other interesting relationships that may have been hidden in individual studies.

This helps to enhance the generalizability of findings, making the conclusions drawn from a meta-analysis particularly powerful and informative for policy and practice.

Title: Cholesterol and Alzheimer’s Disease Risk: A Meta-Meta-Analysis

Citation: Sáiz-Vazquez, O., Puente-Martínez, A., Ubillos-Landa, S., Pacheco-Bonrostro, J., & Santabárbara, J. (2020). Cholesterol and Alzheimer’s disease risk: a meta-meta-analysis. Brain sciences, 10(6), 386.

Source: https://doi.org/10.3390/brainsci10060386  

O verview: This study examines the relationship between cholesterol and Alzheimer’s disease (AD). Researchers conducted a systematic search of meta-analyses and reviewed several databases, collecting 100 primary studies and five meta-analyses to analyze the connection between cholesterol and Alzheimer’s disease. They find that the literature compellingly demonstrates that low-density lipoprotein cholesterol (LDL-C) levels significantly influence the development of Alzheimer’s disease.

• The power of feedback revisited: A meta-analysis of educational feedback research (Wisniewski, Zierer & Hattie, 2020) – read here
• How Much Does Education Improve Intelligence? A Meta-Analysis (Ritchie & Tucker-Drob, 2018) – read here
• A meta-analysis of factors related to recycling (Geiger et al., 2019) – read here
• Stress management interventions for police officers and recruits (Patterson, Chung & Swan, 2014) – read here

Other Types of Reviews

• Scoping Review: This type of review is used to map the key concepts underpinning a research area and the main sources and types of evidence available. It can be undertaken as stand-alone projects in their own right, or as a precursor to a systematic review.
• Rapid Review: This type of review accelerates the systematic review process in order to produce information in a timely manner. This is achieved by simplifying or omitting stages of the systematic review process.
• Integrative Review: This review method is more inclusive than others, allowing for the simultaneous inclusion of experimental and non-experimental research. The goal is to more comprehensively understand a particular phenomenon.
• Critical Review: This is similar to a narrative review but requires a robust understanding of both the subject and the existing literature. In a critical review, the reviewer not only summarizes the existing literature, but also evaluates its strengths and weaknesses. This is common in the social sciences and humanities .
• State-of-the-Art Review: This considers the current level of advancement in a field or topic and makes recommendations for future research directions. This type of review is common in technological and scientific fields but can be applied to any discipline.

How to Write a Narrative Review (Tips for Undergrad Students)

Most undergraduate students conducting a capstone research project will be writing narrative reviews. Below is a five-step process for conducting a simple review of the literature for your project.

• Search for Relevant Literature: Use scholarly databases related to your field of study, provided by your university library, along with appropriate search terms to identify key scholarly articles that have been published on your topic.
• Evaluate and Select Sources: Filter the source list by selecting studies that are directly relevant and of sufficient quality, considering factors like credibility , objectivity, accuracy, and validity.
• Analyze and Synthesize: Review each source and summarize the main arguments  in one paragraph (or more, for postgrad). Keep these summaries in a table.
• Identify Themes: With all studies summarized, group studies that share common themes, such as studies that have similar findings or methodologies.
• Write the Review: Write your review based upon the themes or subtopics you have identified. Give a thorough overview of each theme, integrating source data, and conclude with a summary of the current state of knowledge then suggestions for future research based upon your evaluation of what is lacking in the literature.

Literature reviews don’t have to be as scary as they seem. Yes, they are difficult and require a strong degree of comprehension of academic studies. But it can be feasibly done through following a structured approach to data collection and analysis. With my undergraduate research students (who tend to conduct small-scale qualitative studies ), I encourage them to conduct a narrative literature review whereby they can identify key themes in the literature. Within each theme, students can critique key studies and their strengths and limitations , in order to get a lay of the land and come to a point where they can identify ways to contribute new insights to the existing academic conversation on their topic.

Ankrah, S., & Omar, A. T. (2015). Universities–industry collaboration: A systematic review. Scandinavian Journal of Management, 31(3), 387-408.

Asghari, P., Rahmani, A. M., & Javadi, H. H. S. (2019). Internet of Things applications: A systematic review. Computer Networks , 148 , 241-261.

Dyrbye, L., & Shanafelt, T. (2016). A narrative review on burnout experienced by medical students and residents. Medical education , 50 (1), 132-149.

Geiger, J. L., Steg, L., Van Der Werff, E., & Ünal, A. B. (2019). A meta-analysis of factors related to recycling. Journal of environmental psychology , 64 , 78-97.

Martin, F., Sun, T., & Westine, C. D. (2020). A systematic review of research on online teaching and learning from 2009 to 2018. Computers & education , 159 , 104009.

Mavilidi, M. F., Ruiter, M., Schmidt, M., Okely, A. D., Loyens, S., Chandler, P., & Paas, F. (2018). A narrative review of school-based physical activity for enhancing cognition and learning: The importance of relevancy and integration. Frontiers in psychology , 2079.

Patterson, G. T., Chung, I. W., & Swan, P. W. (2014). Stress management interventions for police officers and recruits: A meta-analysis. Journal of experimental criminology , 10 , 487-513.

Reith, T. P. (2018). Burnout in United States healthcare professionals: a narrative review. Cureus , 10 (12).

Ritchie, S. J., & Tucker-Drob, E. M. (2018). How much does education improve intelligence? A meta-analysis. Psychological science , 29 (8), 1358-1369.

Roman, S., Sánchez-Siles, L. M., & Siegrist, M. (2017). The importance of food naturalness for consumers: Results of a systematic review. Trends in food science & technology , 67 , 44-57.

Sáiz-Vazquez, O., Puente-Martínez, A., Ubillos-Landa, S., Pacheco-Bonrostro, J., & Santabárbara, J. (2020). Cholesterol and Alzheimer’s disease risk: a meta-meta-analysis. Brain sciences, 10(6), 386.

Vermeir, P., Vandijck, D., Degroote, S., Peleman, R., Verhaeghe, R., Mortier, E., … & Vogelaers, D. (2015). Communication in healthcare: a narrative review of the literature and practical recommendations. International journal of clinical practice , 69 (11), 1257-1267.

Wisniewski, B., Zierer, K., & Hattie, J. (2020). The power of feedback revisited: A meta-analysis of educational feedback research. Frontiers in Psychology , 10 , 3087.

Yli-Huumo, J., Ko, D., Choi, S., Park, S., & Smolander, K. (2016). Where is current research on blockchain technology?—a systematic review. PloS one , 11 (10), e0163477.

Zestcott, C. A., Blair, I. V., & Stone, J. (2016). Examining the presence, consequences, and reduction of implicit bias in health care: a narrative review. Group Processes & Intergroup Relations , 19 (4), 528-542

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Writing a Literature Review

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A literature review is a document or section of a document that collects key sources on a topic and discusses those sources in conversation with each other (also called synthesis ). The lit review is an important genre in many disciplines, not just literature (i.e., the study of works of literature such as novels and plays). When we say “literature review” or refer to “the literature,” we are talking about the research ( scholarship ) in a given field. You will often see the terms “the research,” “the scholarship,” and “the literature” used mostly interchangeably.

Where, when, and why would I write a lit review?

There are a number of different situations where you might write a literature review, each with slightly different expectations; different disciplines, too, have field-specific expectations for what a literature review is and does. For instance, in the humanities, authors might include more overt argumentation and interpretation of source material in their literature reviews, whereas in the sciences, authors are more likely to report study designs and results in their literature reviews; these differences reflect these disciplines’ purposes and conventions in scholarship. You should always look at examples from your own discipline and talk to professors or mentors in your field to be sure you understand your discipline’s conventions, for literature reviews as well as for any other genre.

A literature review can be a part of a research paper or scholarly article, usually falling after the introduction and before the research methods sections. In these cases, the lit review just needs to cover scholarship that is important to the issue you are writing about; sometimes it will also cover key sources that informed your research methodology.

Lit reviews can also be standalone pieces, either as assignments in a class or as publications. In a class, a lit review may be assigned to help students familiarize themselves with a topic and with scholarship in their field, get an idea of the other researchers working on the topic they’re interested in, find gaps in existing research in order to propose new projects, and/or develop a theoretical framework and methodology for later research. As a publication, a lit review usually is meant to help make other scholars’ lives easier by collecting and summarizing, synthesizing, and analyzing existing research on a topic. This can be especially helpful for students or scholars getting into a new research area, or for directing an entire community of scholars toward questions that have not yet been answered.

What are the parts of a lit review?

Most lit reviews use a basic introduction-body-conclusion structure; if your lit review is part of a larger paper, the introduction and conclusion pieces may be just a few sentences while you focus most of your attention on the body. If your lit review is a standalone piece, the introduction and conclusion take up more space and give you a place to discuss your goals, research methods, and conclusions separately from where you discuss the literature itself.

Introduction:

• An introductory paragraph that explains what your working topic and thesis is
• A forecast of key topics or texts that will appear in the review
• Potentially, a description of how you found sources and how you analyzed them for inclusion and discussion in the review (more often found in published, standalone literature reviews than in lit review sections in an article or research paper)
• Summarize and synthesize: Give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: Don’t just paraphrase other researchers – add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically Evaluate: Mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: Use transition words and topic sentence to draw connections, comparisons, and contrasts.

Conclusion:

• Summarize the key findings you have taken from the literature and emphasize their significance
• Connect it back to your primary research question

How should I organize my lit review?

Lit reviews can take many different organizational patterns depending on what you are trying to accomplish with the review. Here are some examples:

• Chronological : The simplest approach is to trace the development of the topic over time, which helps familiarize the audience with the topic (for instance if you are introducing something that is not commonly known in your field). If you choose this strategy, be careful to avoid simply listing and summarizing sources in order. Try to analyze the patterns, turning points, and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred (as mentioned previously, this may not be appropriate in your discipline — check with a teacher or mentor if you’re unsure).
• Thematic : If you have found some recurring central themes that you will continue working with throughout your piece, you can organize your literature review into subsections that address different aspects of the topic. For example, if you are reviewing literature about women and religion, key themes can include the role of women in churches and the religious attitude towards women.
• Qualitative versus quantitative research
• Empirical versus theoretical scholarship
• Divide the research by sociological, historical, or cultural sources
• Theoretical : In many humanities articles, the literature review is the foundation for the theoretical framework. You can use it to discuss various theories, models, and definitions of key concepts. You can argue for the relevance of a specific theoretical approach or combine various theorical concepts to create a framework for your research.

What are some strategies or tips I can use while writing my lit review?

Any lit review is only as good as the research it discusses; make sure your sources are well-chosen and your research is thorough. Don’t be afraid to do more research if you discover a new thread as you’re writing. More info on the research process is available in our "Conducting Research" resources .

As you’re doing your research, create an annotated bibliography ( see our page on the this type of document ). Much of the information used in an annotated bibliography can be used also in a literature review, so you’ll be not only partially drafting your lit review as you research, but also developing your sense of the larger conversation going on among scholars, professionals, and any other stakeholders in your topic.

Usually you will need to synthesize research rather than just summarizing it. This means drawing connections between sources to create a picture of the scholarly conversation on a topic over time. Many student writers struggle to synthesize because they feel they don’t have anything to add to the scholars they are citing; here are some strategies to help you:

• It often helps to remember that the point of these kinds of syntheses is to show your readers how you understand your research, to help them read the rest of your paper.
• Writing teachers often say synthesis is like hosting a dinner party: imagine all your sources are together in a room, discussing your topic. What are they saying to each other?
• Look at the in-text citations in each paragraph. Are you citing just one source for each paragraph? This usually indicates summary only. When you have multiple sources cited in a paragraph, you are more likely to be synthesizing them (not always, but often
• Read more about synthesis here.

The most interesting literature reviews are often written as arguments (again, as mentioned at the beginning of the page, this is discipline-specific and doesn’t work for all situations). Often, the literature review is where you can establish your research as filling a particular gap or as relevant in a particular way. You have some chance to do this in your introduction in an article, but the literature review section gives a more extended opportunity to establish the conversation in the way you would like your readers to see it. You can choose the intellectual lineage you would like to be part of and whose definitions matter most to your thinking (mostly humanities-specific, but this goes for sciences as well). In addressing these points, you argue for your place in the conversation, which tends to make the lit review more compelling than a simple reporting of other sources.

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• What is a Literature Review? | Guide, Template, & Examples

What is a Literature Review? | Guide, Template, & Examples

Published on 22 February 2022 by Shona McCombes . Revised on 7 June 2022.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research.

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarise sources – it analyses, synthesises, and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

Why write a literature review, examples of literature reviews, step 1: search for relevant literature, step 2: evaluate and select sources, step 3: identify themes, debates and gaps, step 4: outline your literature review’s structure, step 5: write your literature review, frequently asked questions about literature reviews, introduction.

• Quick Run-through
• Step 1 & 2

When you write a dissertation or thesis, you will have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and scholarly context
• Develop a theoretical framework and methodology for your research
• Position yourself in relation to other researchers and theorists
• Show how your dissertation addresses a gap or contributes to a debate

You might also have to write a literature review as a stand-alone assignment. In this case, the purpose is to evaluate the current state of research and demonstrate your knowledge of scholarly debates around a topic.

The content will look slightly different in each case, but the process of conducting a literature review follows the same steps. We’ve written a step-by-step guide that you can follow below.

Prevent plagiarism, run a free check.

Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research objectives and questions .

If you are writing a literature review as a stand-alone assignment, you will have to choose a focus and develop a central question to direct your search. Unlike a dissertation research question, this question has to be answerable without collecting original data. You should be able to answer it based only on a review of existing publications.

Make a list of keywords

Start by creating a list of keywords related to your research topic. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list if you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can use boolean operators to help narrow down your search:

Read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

To identify the most important publications on your topic, take note of recurring citations. If the same authors, books or articles keep appearing in your reading, make sure to seek them out.

You probably won’t be able to read absolutely everything that has been written on the topic – you’ll have to evaluate which sources are most relevant to your questions.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models and methods? Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• How does the publication contribute to your understanding of the topic? What are its key insights and arguments?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible, and make sure you read any landmark studies and major theories in your field of research.

You can find out how many times an article has been cited on Google Scholar – a high citation count means the article has been influential in the field, and should certainly be included in your literature review.

The scope of your review will depend on your topic and discipline: in the sciences you usually only review recent literature, but in the humanities you might take a long historical perspective (for example, to trace how a concept has changed in meaning over time).

Remember that you can use our template to summarise and evaluate sources you’re thinking about using!

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It’s important to keep track of your sources with references to avoid plagiarism . It can be helpful to make an annotated bibliography, where you compile full reference information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

You can use our free APA Reference Generator for quick, correct, consistent citations.

To begin organising your literature review’s argument and structure, you need to understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly-visual platforms like Instagram and Snapchat – this is a gap that you could address in your own research.

There are various approaches to organising the body of a literature review. You should have a rough idea of your strategy before you start writing.

Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarising sources in order.

Try to analyse patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organise your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text, your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

If you are writing the literature review as part of your dissertation or thesis, reiterate your central problem or research question and give a brief summary of the scholarly context. You can emphasise the timeliness of the topic (“many recent studies have focused on the problem of x”) or highlight a gap in the literature (“while there has been much research on x, few researchers have taken y into consideration”).

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, make sure to follow these tips:

• Summarise and synthesise: give an overview of the main points of each source and combine them into a coherent whole.
• Analyse and interpret: don’t just paraphrase other researchers – add your own interpretations, discussing the significance of findings in relation to the literature as a whole.
• Critically evaluate: mention the strengths and weaknesses of your sources.
• Write in well-structured paragraphs: use transitions and topic sentences to draw connections, comparisons and contrasts.

In the conclusion, you should summarise the key findings you have taken from the literature and emphasise their significance.

If the literature review is part of your dissertation or thesis, reiterate how your research addresses gaps and contributes new knowledge, or discuss how you have drawn on existing theories and methods to build a framework for your research. This can lead directly into your methodology section.

A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a dissertation , thesis, research paper , or proposal .

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarise yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your  dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

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Literature Review Basics

• Tutorials & Samples
• Literature Review Introduction
• Writing Literature Reviews
• Primary & Secondary Sources

Literature Review Tutorials

• Literature Reviews: An Overview for Students What is a literature review? What purpose does it serve in research? What should you expect when writing one? Find out here in this guide from NCSU libraries.
• Write a Lit Review from Virginia Commonwealth University Follow this guide to learn how to write a literature review, beginning with a synthesis matrix.
• Literature Review: The What, Why and How-to Guide This guide will help you understand what is a Literature Review, why it is important and how it is done. Also includes information on Annotated Bibliographies.
• Writing a Literature Review from the University of Toledo Covers what a lit review is, lit review types, writing a lit review and further readings.
• The Literature Review Process A guide from the University of North Texas on selecting a topic, searching the literature, plan before reviewing, reviewing the literature and writing the review.
• The Writing Center, University of North Carolina at Chapel Hill Permission granted to use this guide.

Sample Literature Reviews

• Business Literature Review Example One Sharing economy: A comprehensive literature review
• Business Literature Review Example Two Internet marketing: a content analysis of the research
• Education Literature Review Sample One Teachers’ perception of STEM integration and education: a systematic literature review
• Education Literature Review Sample Two Issues and Challenges for Teaching Successful Online Courses in Higher Education: A Literature Review
• Gerontology Literature Review Sample One Attitudes towards caring for older people: literature review and methodology
• Gerontology Literature Review Sample Two Literature review: understanding nursing competence in dementia care
• Psychology Literature Review Sample One Psychological Correlates of University Students’ Academic Performance: A Systematic Review and Meta-Analysis
• Psychology Literature Review Sample Two Misuse of Prescription Stimulants Among College Students: A Review of the Literature and Implications for Morphological and Cognitive Effects on Brain Functioning
• Public Administration Literature Review Sample One Considering the Environment in Transportation Planning: Review of Emerging Paradigms and Practice in the United States
• Public Administration Literature Review Sample Two Assessing the impact of research on policy: a literature review
• Sociology Literature Review Sample One Employment Among Current and Former Welfare Recipients: A Literature Review
• Sociology Literature Review Sample Two Deployment and family functioning: A literature review of US operations in Afghanistan and Iraq
• Technology Literature Review Sample One Social media and innovation: A systematic literature review and future research directions
• Technology Literature Review Sample Two Blockchain as a disruptive technology for business: A systematic review
• << Previous: Primary & Secondary Sources
• Last Updated: Jun 28, 2023 9:19 AM
• URL: https://laverne.libguides.com/litreviews

ACAP LEARNING RESOURCES

ACAP Pathfinder: Literature Review

• What is a Literature Review?

Examples of Literature Reviews

• The Research Question
• Types of Literature
• How to Search
• Recording the Search
• Reference Management
• Evaluating the Literature

Types of Literature Reviews

Student Examples

There isn't one ideal type of literature review and you may need to employ a range of methods and provide reasons for your choices depending on the research area, problem and methodology. Aveyard (2014) describes a number of ways to approach writing a literature review. Most importantly though, take a close look at your assessment task, the associated marking criteria and access the support material on the first page of this guide. These will guide you towards an application of the fundamental characteristics required in the review.  

Below are some examples of literature reviews written by ACAP students . Use these to gain an understanding of the generic structure and language used when writing your own literature reviews.  

Evidence-Based Practice & Systematic Reviews

As a result of a vast increase in the availability of information, practitioners have an increasing responsibility to provide services based on best practice that has been informed by evidence-based research. Practitioners then, use evidence-based practice (EBP) to make decisions about the care of clients (techniques, strategies, interventions, treatments and so on) based on the most up-to-date and judicious use of systematically researched evidence.

Given the vast amount of information available and the varying quality of research conducted in and around EBP, the need for systematic reviews has emerged in order to provide a way to collect, analyse and draw conclusions, particularly about a field where the research may indicate inconsistencies or contradictory findings.

While you cannot use systematic reviews as a part of the research for your literature reviews, they are extremely valuable sources of information and an essential guide to best practice for professionals. While researching for your literature reviews, use EBPs and systematic reviews to gain an understanding of the issues in and around your topic and employ the citation chaining process to extract research that is usable in your assessment tasks. The tabs below will connect you to some examples of both.

• STUDENT EXAMPLES
• EBSCO EXAMPLES
• SYSTEMATIC REVIEWS
• EVIDENCE-BASED PRACTICE

• Literature Reviews in Ebsco Just a few examples from a search of counselling and psychotherapy literature reviews in EbscoHost databases.

• << Previous: What is a Literature Review?
• Next: How to Search the Literature >>
• Last Updated: Sep 13, 2023 10:53 AM
• URL: https://libguides.navitas.com/literature-review

• How it works

Published by Nicolas at January 16th, 2024 , Revised On January 23, 2024

Literature Review Examples – How To Write One?

A literature review is a critical analysis of existing scholarly literature on a particular topic. It is often required as part of academic assignments, such as research papers , theses, and dissertations. However, writing a good literature review can be challenging, especially for first-time students. 

Table of Contents

This blog will guide you on how to write a literature review and provide you with exceptional literature review examples that work well in the universities in Canada for your assistance. Let’s get started.

What Is A Literature Review?

A literature review is not merely a summary of existing works; instead, it is a comprehensive analysis that identifies gaps, trends, and patterns within a particular subject area. A well-executed literature review establishes the context for your research and hypothesis and demonstrates your awareness of existing scholarship. Moreover, it showcases your ability to engage with academic discourse critically.

Purpose Of A Literature Review

The purpose of a literature review is to:

• Demonstrate your knowledge of the existing literature on your topic.
• Identify the key themes, debates, and gaps in the literature.
• Position your own research in the context of the existing literature.
• Show how your research will contribute to the field.

How To Write A Literature Review Example

Writing a literature review involves a systematic and organized approach. Follow the research paper format stated by your organization. Here’s a step-by-step guide to help you write an effective literature review:

Step 1: Define The Scope And Purpose

• Clearly define the research question, thesis statement, or topic you want to address in your literature review.
• Determine the scope of your review by setting boundaries for the time period, geographic location, and specific aspects of the topic you want to cover.
• Identify the purpose of your literature review, such as providing an overview, identifying gaps in existing research, or evaluating the current state of knowledge.

Step 2: Conduct A Comprehensive Literature Search

• Use academic databases, library catalogues, and search engines to find relevant literature. Common databases include PubMed , Google Scholar , and specialized databases related to your field.
• Use a combination of keywords and controlled vocabulary to refine your search.
• Keep track of the sources you find, including bibliographic information, abstracts, and key findings.
• Read professionally written examples of literature review for better understanding.

Step 3: Evaluate And Select Sources

• Critically evaluate the quality and relevance of each source. Consider the credibility of the author, the publication venue, and the methodology used in the studies.
• Organize the selected sources into themes or categories based on commonalities and differences.
• Identify key theories, concepts, or methodologies that are central to your topic.
• For example, in a finance thesis , add sources that are only relevant to the specific topic of finance that you wish to explore. 

Step 4: Synthesize Information

• Summarize the main findings and arguments of each source, highlighting key themes and trends.
• Identify areas of agreement and disagreement among the sources.
• Organize the information in a logical and coherent manner. You can use a chronological, thematic, or methodological approach, depending on the nature of your literature review.

Step 5: Write And Revise

• Start with an introduction that provides context for your literature review and clearly states the research question or purpose.
• Organize the body of your literature review based on the themes or categories you identified during the synthesis.
• Discuss each source in relation to your research question, highlighting key findings and their implications.
• Conclude by summarizing the main contributions of the literature to your research question and identifying any gaps or areas for future research.
• Revise and edit your literature review for clarity, coherence, and conciseness.

APA Literature Review Example

Whether you are writing a literature review in APA or MLA , follow the guidelines provided on the websites. Here is a comprehensive example of a literature review in APA that will provide a better understanding of how to write a literature review. 

Literature Review: The Impact of Social Media on Mental Health in Adolescents

Social media has become an integral part of the lives of adolescents, with platforms such as Facebook, Instagram, Twitter, and Snapchat dominating their online experiences. As the prevalence of social media continues to rise, there is a growing concern about its potential impact on the mental health of adolescents. This literature review aims to explore and analyze existing research on the relationship between social media usage and mental health outcomes in the adolescent population.

Social Media Usage Patterns

Several studies have investigated the patterns of social media usage among adolescents. Smith et al. (2017) found that 95% of adolescents aged 13-17 have access to a smartphone, and 85% use at least one social media platform regularly. Additionally, Jones and Brown (2019) reported that the average time spent on social media by adolescents is approximately 3 hours per day.

Cyberbullying and Mental Health

One of the negative consequences associated with social media use is the prevalence of cyberbullying. Patchin and Hinduja (2018) highlighted that adolescents who experience cyberbullying are more likely to report symptoms of depression and anxiety. This finding is consistent with a longitudinal study by Williams et al. (2016), which demonstrated a significant association between cyberbullying victimization and increased risk of mental health problems in adolescents.

Social Comparison and Body Image

Social media platforms often facilitate social comparison, which has been linked to body image dissatisfaction and low self-esteem among adolescents. Fardouly et al. (2020) conducted a meta-analysis of 15 studies and found a moderate effect size, indicating a strong association between social media use and negative body image. Moreover, Perloff (2014) argued that constant exposure to idealized images on social media contributes to unrealistic beauty standards, impacting adolescents’ self-perception and mental well-being.

Fear of Missing Out (FOMO) and Anxiety

The Fear of Missing Out (FOMO) is a psychological phenomenon associated with anxiety and stress related to the fear of not being included or missing out on experiences others are having. Primack et al. (2017) conducted a cross-sectional analysis and discovered a positive correlation between higher social media use, FOMO, and increased levels of anxiety among adolescents. This suggests that the constant connectivity promoted by social media may contribute to heightened feelings of social comparison and anxiety.

Positive Aspects of Social Media Use

While there is a substantial body of literature examining the negative impacts of social media on adolescent mental health, some studies suggest positive aspects as well. Moreno et al. (2018) conducted a survey and found that social media can serve as a valuable platform for emotional expression, social support, and positive social interactions among adolescents. Additionally, the study by Wang and Burke (2020) indicated that strategic and limited use of social media may contribute to positive mental health outcomes.

The existing literature provides a deep understanding of the complex relationship between social media use and mental health outcomes in adolescents. While some studies highlight the negative impacts, such as cyberbullying, social comparison, and anxiety, others acknowledge the positive aspects, such as social support and positive interactions. Future research should focus on the development of effective interventions and guidelines to promote healthy social media use among adolescents.

Types Of Literature Review

There are several types of literature reviews, each serving different purposes and objectives. Here are some common types:

Narrative Or Traditional Literature Review

• Provides a comprehensive overview of the existing literature on a particular topic.
• Summarizes and synthesizes information from various sources without a specific methodological approach.

Systematic Literature Review

• Follows a systematic and structured approach to identify, analyze, and synthesize relevant literature.
• Involves a clearly defined research question and a detailed search strategy.
• Aims to minimize bias and subjectivity in the selection and analysis of studies.

Systematic Literature Review Example

Conducted in accordance with PRISMA guidelines, this systematic literature review focuses on the efficacy of cognitive-behavioural therapy (CBT) for anxiety disorders in pediatric populations. A comprehensive search across databases identified 25 relevant studies meeting the inclusion criteria. Results indicate consistent positive outcomes in symptom reduction across various anxiety disorders, including generalized anxiety and social anxiety (Jones et al., 2020; Smith & Brown, 2019). However, methodological variations in CBT delivery and outcome measures highlight the need for standardized protocols. This review underscores the robust evidence supporting CBT’s effectiveness in treating pediatric anxiety, while advocating for more uniform research methodologies to enhance comparability and generalizability (Johnson et al., 2018).

Meta-Analysis

• A specialized form of systematic review that involves statistical analysis of quantitative data from multiple studies.
• Combines results from different studies to derive overall conclusions or effect sizes.
• Requires homogeneity in study design and outcome measures for accurate analysis.

Meta-Synthesis

• Meta-synthesis is a qualitative approach that synthesizes findings from multiple qualitative studies.
• Involves the interpretation and integration of themes, concepts, or qualitative data across different studies.

Scoping Review

• A preliminary literature review on a broad topic to identify key concepts, gaps, and research areas.
• Provides an overview without necessarily synthesizing the evidence.

Scoping Literature Review Example 

This scoping review investigates the breadth of literature on the impact of mindfulness interventions on stress reduction. Initial searches in databases such as PubMed and PsycINFO yielded 80 relevant articles. Key themes emerged, including diverse intervention formats (e.g., mindfulness-based stress reduction, mindfulness apps), target populations (e.g., healthcare professionals, students), and outcome measures (e.g., self-reported stress levels, physiological markers). Noteworthy is the limited exploration of long-term effects and variations in intervention delivery. The review provides a foundation for future research directions, emphasizing the need for standardized methodologies and comprehensive assessments to advance our understanding of mindfulness interventions’ effectiveness in stress reduction (Smith et al., 2021; Brown & Jones, 2020).

Critical Review

• Evaluates and critiques the strengths and weaknesses of existing literature.
• Focuses on the methodology, theoretical framework, and overall quality of the studies reviewed.

Integrative Review

• Aims to provide a comprehensive understanding of a topic by integrating findings from different types of studies (quantitative, qualitative, or both).
• May include a range of research designs and methodologies.

Rapid Review

• Conducted within a shorter timeframe, often for decision-making purposes.
• Involves a streamlined review process with limitations in terms of depth and comprehensiveness.

Umbrella Review

• A review of existing systematic reviews and meta-analyses on a specific topic.
• Provides a higher level of evidence synthesis by examining the findings of multiple reviews.

Mixed Methods Review

Incorporates both quantitative and qualitative research studies to gain a comprehensive understanding of a research question.

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Tips For Writing A Good Literature Review

Here are a few additional tips for writing a good literature review in a dissertation or thesis :

Tip 1: Start Early 

Do not wait until the last minute to start writing your literature review. It takes time to do a good job.

Tip 2: Read Widely

Do not just read the most recent articles on your topic. Be sure to read older articles as well.

Tip 3: Take Breaks

Do not try to write your literature review all at once. Take breaks to avoid getting burned out.

Tip 4: Get Feedback

Ask your professor or a classmate to read your literature review and give you feedback.

Common Mistakes To Avoid When Writing A Literature Review

While literature review examples can provide valuable guidance, it is equally important to be aware of common pitfalls that can undermine the effectiveness of your literature review.

• Lack of Focus: A literature review should have a clear focus and not attempt to cover an entire field. Define the boundaries of your review and concentrate on the most relevant and recent literature.
• Overreliance on Secondary Sources: While reviews of existing reviews can be informative, relying solely on secondary sources, such as newspapers , may lead to a lack of depth in your analysis. Strive to include primary research studies to strengthen the credibility of your literature review.
• Failure to Synthesize: Merely summarizing individual studies without synthesizing their findings can result in a disjointed and unconvincing literature review. Connect the dots between different sources to provide a cohesive narrative.
• Ignoring Contradictory Evidence: A robust literature review acknowledges and addresses conflicting findings in the existing literature. Ignoring contradictory evidence can weaken the overall credibility of your review.

Frequently Asked Questions

What is a literature review.

A literature review is a critical analysis of existing research and scholarly works on a specific topic. It involves summarizing, evaluating, and synthesizing relevant literature to identify gaps, patterns, and trends. The review provides a foundation for understanding the current state of knowledge and informs future research directions.

How to write a literature review example?

To write a literature review, define your purpose, conduct a comprehensive search, critically evaluate sources, organize them thematically, and synthesize key findings. Structure your review with an introduction, thematic sections, and a conclusion. Properly cite sources, seek feedback, and revise. Maintain clarity, coherence, and adherence to citation styles throughout.

How to start a literature review example?

Begin your literature review with a concise introduction, providing context for the topic and clearly stating its importance. Define the scope and purpose, indicating the key themes or questions to be addressed. Engage readers by highlighting the relevance and significance of the reviewed literature to the broader research field.

How to write a literature review introduction example?

In this literature review, we explore the evolving landscape of artificial intelligence in healthcare. As advancements accelerate, understanding the implications of patient care and ethical considerations is crucial. This review aims to synthesize existing literature, identifying key trends, challenges, and opportunities in the intersection of artificial intelligence and healthcare delivery.

How to conclude a literature review example?

In conclusion, this literature review reveals the multifaceted nature of social media’s impact on mental health. While negative outcomes are associated with social comparison and excessive use, positive effects include social support. Thorough research is essential, considering individual differences and evolving social media dynamics, for a comprehensive understanding of its influence.

How to critique a literature review example?

This literature review demonstrates a comprehensive analysis of existing research on climate change adaptation strategies. Strengths include a clear organization and synthesis of findings. However, potential limitations include an emphasis on studies from specific regions, possibly affecting the generalizability of the conclusions. Further exploration of diverse geographic contexts could enhance the review’s robustness.

What is a preliminary literature review?

A preliminary literature review is an initial exploration of existing research on a specific topic. It helps researchers identify key concepts, relevant studies, and gaps in the literature before conducting an in-depth review. This phase informs the development of research questions and refines the focus for a more comprehensive literature review.

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Writing a Literature Review: Examples & Tutorials

• Phase 1: Scope of Review
• Phase 2: Finding Information
• Phase 3: Recording Information
• Phase 4: Evaluating Information
• Phase 5: Organizing the Review
• Phase 6: Writing the Review & Bibliography
• Tools & Resources
• Examples & Tutorials

Examples of Lit. Reviews

Sample Literature Review -Here is a sample literature review written by a librarian at American University Library.

Deshmukh, Marion F. " The Visual Arts and Cultural Migration in the 1930s and 1940s: A Literature Review. " Central European History (Cambridge University Press / UK) 41.4 (2008): 569-604. Dunjó, Jordi, et al. " Hazard and Operability (HAZOP) Analysis. A Literature Review ." Journal of Hazardous Materials 173.1-3 (2010): 19-32. Gibbons, Susan. " Understanding Empathy as a Complex Construct: A Review of the Literature ." Clinical Social Work Journal 39.3 (2011): 243-52.

Liddle, H. A. (2004). Family-based therapies for adolescent alcohol and drug use: Research contributions and future research needs.   Addiction , 99 (Suppl.2), 76-92.

Mayer, David J. " Acupuncture: An Evidence-Based Review of the Clinical Literature ." Annual Review of Medicine 51:1 (2000): 49-63.

Meyer, Sebastian, Bruno Glaser, and Peter Quicker. " Technical, Economical, and Climate-Related Aspects of Biochar Production Technologies: A Literature Review. " Environmental science & technology 45.22 (2011): 9473-83.

• Writing the Literature Review Part I Defines what a literature review is - and is not.
• Writing the Literature Review Part II Organizing sources, basic steps in the writing process.
• Literature Review Overview for Graduate Students Understand how studies relate to one another, how your own ideas fit within the existing literature.
• Interactive tutorial for literature reviews in Education & Behavioral Sciences • Understanding the Literature Review • Identifying Sources for the Literature Review • Finding Review and Research Articles • Putting it All Together

Literature Review Overview

Subject Guide

• << Previous: Tools & Resources
• Last Updated: Oct 17, 2023 12:56 PM
• URL: https://libguides.apsu.edu/litreview

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Literature Review

What is a literature review.

Students are often unsure of how to write a literature review. This is usually because, unlike other stages of a thesis such as Methods and Results, they have never written a literature review before.

FAQs about literature reviews

In the table below, you will find some of the questions that students ask, and some suggested answers.

Examples of literature reviews: organisation

Here you will find some examples from past Honours theses. The first set of examples shows part of the Table of Contents, so that you can see the kind of information included in a literature review. What can you notice about how the students have organised their reviews? 

From the School of Biotechnology and Biomolecular Sciences

1. INTRODUCTION ............................................... 1

1.1 HEPATITIS C VIRUS................................. 1

1.1.1 Genome ................................................ 1  1.1.2 Pathogenesis.......................................... 2  1.1.3 Transmission.......................................... 3  1.1.4 Epidemiology.......................................... 5 1.1.5 Treatment.............................................. 5

1.2 QUASISPECIES............................................ 7

1.2.1 Quasispecies and Treatment Outcome....... 7

1.3 METHODS TO ANLAYSE QUASISPECIES........... 8

1.3.1 Cloning and Sequencing........................... 9 1.3.2 Heteroduplex Mobility Analysis (HMA)........ 9 1.3.3 Capillary Electrophoresis......................... 11 

1.4 HYPOTHESIS AND AIMS ............................... 11 

(Oon 2005, p.ii)

What organisational approach has the student taken in example A?

From the School of Photovoltaic and Renewable Energy Engineering

2. LITERATURE REVIEW .......................................... 2-1

2.1 CLASSIC DIFFUSION CONCEPT....................... 2-1

2.1.1diffusion mechanisms................................ 2-1  2.1.2 Fick’s law .................................................. 2-4

2.2 BORON DIFFUSION ........................................ 2-9

2.2.1 diffusivity ................................................ 2-9 2.2.2 segregation coefficient ............................. 2-10 2.2.3 silicon self-interstitial and diffusion rate....... 2-12  2.2.4 formation of boron rich layer (brl).............. 2-12 2.2.5 boron diffusion systems............................. 2-14

2.3 BORON NITRIDE SOLID SOURCE DIFFUSION..... 2-15

2.3.1 benefits and challenges.............................. 2-15  2.3.2 diffusion process........................................ 2-16

2.4 SOLAR CELL CHARACTERISATION..................... 2-18

What organisational approach has the student taken in example B?

Examples of literature reviews: language

Here you will find some more examples of literature reviews, showing how the students refer to and comment on previous research. Look at the following examples and see how the students summarise a number of studies and contrast differing findings. Also notice the use of evaluative language to show the student's evaluation of the previous research.

• Summarising language
• Contrast language 
• Evaluative language

"Several studies [5, 6, 7] have reported the benefits of using boron solid sources over other types of boron diffusion source. … On the contrary, Warabisako et al [9] demonstrated that obtaining high efficiencies with boron solid source was no easy task. They reported severe degradation of bulk minority carrier lifetime after boron solid source diffusion" (Chen, 2003, pp.2-14-2-15).

"On evaluation of the studies performed thus far, genotype 1b RdRp proteins have been studied extensively while RdRp proteins from other genotypes have been somewhat ignored.  Kim et al. was the only group to have published a 3a RdRp paper, although their focus was on the template requirement for the NS5B gene as opposed to polymerase activity" (Tan, 2004, pp.15-16)

See next: Exercise for getting started on your literature review

Engineering & science.

• Report writing
• Technical writing
• Writing lab reports
• Introductions
• Literature Review Exercise
• Writing up results
• Discussions
• Conclusions
• Writing tools
• Case study report in (engineering)
• ^ More support

Study Hacks Workshops | All the hacks you need! 7 Feb – 10 Apr 2024

Discover your Library: Main Library 21 May 2024

How To Structure Your Literature Review

3 options to help structure your chapter.

By: Amy Rommelspacher (PhD) | Reviewer: Dr Eunice Rautenbach | November 2020 (Updated May 2023)

Writing the literature review chapter can seem pretty daunting when you’re piecing together your dissertation or thesis. As  we’ve discussed before , a good literature review needs to achieve a few very important objectives – it should:

• Demonstrate your knowledge of the research topic
• Identify the gaps in the literature and show how your research links to these
• Provide the foundation for your conceptual framework (if you have one)
• Inform your own  methodology and research design

To achieve this, your literature review needs a well-thought-out structure . Get the structure of your literature review chapter wrong and you’ll struggle to achieve these objectives. Don’t worry though – in this post, we’ll look at how to structure your literature review for maximum impact (and marks!).

But wait – is this the right time?

Deciding on the structure of your literature review should come towards the end of the literature review process – after you have collected and digested the literature, but before you start writing the chapter. 

In other words, you need to first develop a rich understanding of the literature before you even attempt to map out a structure. There’s no use trying to develop a structure before you’ve fully wrapped your head around the existing research.

Equally importantly, you need to have a structure in place before you start writing , or your literature review will most likely end up a rambling, disjointed mess. 

Importantly, don’t feel that once you’ve defined a structure you can’t iterate on it. It’s perfectly natural to adjust as you engage in the writing process. As we’ve discussed before , writing is a way of developing your thinking, so it’s quite common for your thinking to change – and therefore, for your chapter structure to change – as you write. 

Need a helping hand?

Like any other chapter in your thesis or dissertation, your literature review needs to have a clear, logical structure. At a minimum, it should have three essential components – an  introduction , a  body   and a  conclusion . 

Let’s take a closer look at each of these.

1: The Introduction Section

Just like any good introduction, the introduction section of your literature review should introduce the purpose and layout (organisation) of the chapter. In other words, your introduction needs to give the reader a taste of what’s to come, and how you’re going to lay that out. Essentially, you should provide the reader with a high-level roadmap of your chapter to give them a taste of the journey that lies ahead.

Here’s an example of the layout visualised in a literature review introduction:

Your introduction should also outline your topic (including any tricky terminology or jargon) and provide an explanation of the scope of your literature review – in other words, what you  will   and  won’t   be covering (the delimitations ). This helps ringfence your review and achieve a clear focus . The clearer and narrower your focus, the deeper you can dive into the topic (which is typically where the magic lies). 

Depending on the nature of your project, you could also present your stance or point of view at this stage. In other words, after grappling with the literature you’ll have an opinion about what the trends and concerns are in the field as well as what’s lacking. The introduction section can then present these ideas so that it is clear to examiners that you’re aware of how your research connects with existing knowledge .

2: The Body Section

The body of your literature review is the centre of your work. This is where you’ll present, analyse, evaluate and synthesise the existing research. In other words, this is where you’re going to earn (or lose) the most marks. Therefore, it’s important to carefully think about how you will organise your discussion to present it in a clear way. 

The body of your literature review should do just as the description of this chapter suggests. It should “review” the literature – in other words, identify, analyse, and synthesise it. So, when thinking about structuring your literature review, you need to think about which structural approach will provide the best “review” for your specific type of research and objectives (we’ll get to this shortly).

There are (broadly speaking)  three options  for organising your literature review.

Option 1: Chronological (according to date)

Organising the literature chronologically is one of the simplest ways to structure your literature review. You start with what was published first and work your way through the literature until you reach the work published most recently. Pretty straightforward.

The benefit of this option is that it makes it easy to discuss the developments and debates in the field as they emerged over time. Organising your literature chronologically also allows you to highlight how specific articles or pieces of work might have changed the course of the field – in other words, which research has had the most impact . Therefore, this approach is very useful when your research is aimed at understanding how the topic has unfolded over time and is often used by scholars in the field of history. That said, this approach can be utilised by anyone that wants to explore change over time .

For example , if a student of politics is investigating how the understanding of democracy has evolved over time, they could use the chronological approach to provide a narrative that demonstrates how this understanding has changed through the ages.

Here are some questions you can ask yourself to help you structure your literature review chronologically.

• What is the earliest literature published relating to this topic?
• How has the field changed over time? Why?
• What are the most recent discoveries/theories?

In some ways, chronology plays a part whichever way you decide to structure your literature review, because you will always, to a certain extent, be analysing how the literature has developed. However, with the chronological approach, the emphasis is very firmly on how the discussion has evolved over time , as opposed to how all the literature links together (which we’ll discuss next ).

Option 2: Thematic (grouped by theme)

The thematic approach to structuring a literature review means organising your literature by theme or category – for example, by independent variables (i.e. factors that have an impact on a specific outcome).

As you’ve been collecting and synthesising literature , you’ll likely have started seeing some themes or patterns emerging. You can then use these themes or patterns as a structure for your body discussion. The thematic approach is the most common approach and is useful for structuring literature reviews in most fields.

For example, if you were researching which factors contributed towards people trusting an organisation, you might find themes such as consumers’ perceptions of an organisation’s competence, benevolence and integrity. Structuring your literature review thematically would mean structuring your literature review’s body section to discuss each of these themes, one section at a time.

Here are some questions to ask yourself when structuring your literature review by themes:

• Are there any patterns that have come to light in the literature?
• What are the central themes and categories used by the researchers?
• Do I have enough evidence of these themes?

PS – you can see an example of a thematically structured literature review in our literature review sample walkthrough video here.

Option 3: Methodological

The methodological option is a way of structuring your literature review by the research methodologies used . In other words, organising your discussion based on the angle from which each piece of research was approached – for example, qualitative , quantitative or mixed  methodologies.

Structuring your literature review by methodology can be useful if you are drawing research from a variety of disciplines and are critiquing different methodologies. The point of this approach is to question  how  existing research has been conducted, as opposed to  what  the conclusions and/or findings the research were.

For example, a sociologist might centre their research around critiquing specific fieldwork practices. Their literature review will then be a summary of the fieldwork methodologies used by different studies.

Here are some questions you can ask yourself when structuring your literature review according to methodology:

• Which methodologies have been utilised in this field?
• Which methodology is the most popular (and why)?
• What are the strengths and weaknesses of the various methodologies?
• How can the existing methodologies inform my own methodology?

3: The Conclusion Section

Once you’ve completed the body section of your literature review using one of the structural approaches we discussed above, you’ll need to “wrap up” your literature review and pull all the pieces together to set the direction for the rest of your dissertation or thesis.

The conclusion is where you’ll present the key findings of your literature review. In this section, you should emphasise the research that is especially important to your research questions and highlight the gaps that exist in the literature. Based on this, you need to make it clear what you will add to the literature – in other words, justify your own research by showing how it will help fill one or more of the gaps you just identified.

Last but not least, if it’s your intention to develop a conceptual framework for your dissertation or thesis, the conclusion section is a good place to present this.

Example: Thematically Structured Review

In the video below, we unpack a literature review chapter so that you can see an example of a thematically structure review in practice.

Let’s Recap

In this article, we’ve  discussed how to structure your literature review for maximum impact. Here’s a quick recap of what  you need to keep in mind when deciding on your literature review structure:

• Just like other chapters, your literature review needs a clear introduction , body and conclusion .
• The introduction section should provide an overview of what you will discuss in your literature review.
• The body section of your literature review can be organised by chronology , theme or methodology . The right structural approach depends on what you’re trying to achieve with your research.
• The conclusion section should draw together the key findings of your literature review and link them to your research questions.

If you’re ready to get started, be sure to download our free literature review template to fast-track your chapter outline.

Psst… there’s more!

This post is an extract from our bestselling Udemy Course, Literature Review Bootcamp . If you want to work smart, you don't want to miss this .

You Might Also Like:

27 Comments

Great work. This is exactly what I was looking for and helps a lot together with your previous post on literature review. One last thing is missing: a link to a great literature chapter of an journal article (maybe with comments of the different sections in this review chapter). Do you know any great literature review chapters?

I agree with you Marin… A great piece

I agree with Marin. This would be quite helpful if you annotate a nicely structured literature from previously published research articles.

Awesome article for my research.

I thank you immensely for this wonderful guide

It is indeed thought and supportive work for the futurist researcher and students

Very educative and good time to get guide. Thank you

Great work, very insightful. Thank you.

Thanks for this wonderful presentation. My question is that do I put all the variables into a single conceptual framework or each hypothesis will have it own conceptual framework?

Thank you very much, very helpful

This is very educative and precise . Thank you very much for dropping this kind of write up .

Pheeww, so damn helpful, thank you for this informative piece.

I’m doing a research project topic ; stool analysis for parasitic worm (enteric) worm, how do I structure it, thanks.

comprehensive explanation. Help us by pasting the URL of some good “literature review” for better understanding.

great piece. thanks for the awesome explanation. it is really worth sharing. I have a little question, if anyone can help me out, which of the options in the body of literature can be best fit if you are writing an architectural thesis that deals with design?

I am doing a research on nanofluids how can l structure it?

Beautifully clear.nThank you!

Lucid! Thankyou!

Brilliant work, well understood, many thanks

I like how this was so clear with simple language 😊😊 thank you so much 😊 for these information 😊

Insightful. I was struggling to come up with a sensible literature review but this has been really helpful. Thank you!

You have given thought-provoking information about the review of the literature.

Thank you. It has made my own research better and to impart your work to students I teach

I learnt a lot from this teaching. It’s a great piece.

I am doing research on EFL teacher motivation for his/her job. How Can I structure it? Is there any detailed template, additional to this?

You are so cool! I do not think I’ve read through something like this before. So nice to find somebody with some genuine thoughts on this issue. Seriously.. thank you for starting this up. This site is one thing that is required on the internet, someone with a little originality!

I’m asked to do conceptual, theoretical and empirical literature, and i just don’t know how to structure it

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• Library Catalogue

Literature reviews for graduate students

On this page, what is a literature review, literature review type definitions, literature review protocols and guidelines, to google scholar, or not to google scholar, subject headings vs. keywords, keeping track of your research, project management software, citation management software, saved searches.

Related guides:

• Systematic, scoping, and rapid reviews: An overview
• Academic writing: what is a literature review , a guide that addresses the writing and composition aspect of a literature review
• Media literature reviews: how to conduct a literature review using news sources
• Literature reviews in the applied sciences
• Start your research here , literature review searching, mainly of interest to newer researchers

For more assistance, please contact the Liaison Librarian in your subject area .

Most generally, a literature review is a search within a defined range of information source types, such as, for instance, journals and books, to discover what has been already written about a specific subject or topic.  A literature review is a key component of almost all research papers.  However, the term is often applied loosely to describe a wide range of methodological approaches. A literature review in a first or second year course may involve browsing the library databases to get a sense of the research landscape in your topic and including 3-4 journal articles in your paper. At the other end of the continuum, the review may involve completing a comprehensive search, complete with documented search strategies and a listing of article inclusion and exclusion criteria. In the most rigorous format - a Systematic Review - a team of researchers may compile and review over 100,000 journal articles in a project spanning one to two years! These are out of scope for most graduate students, but it is important to be aware of the range of types of reviews possible.

One of the first steps in conducting a lit review is thus to clarify what kind of review you are doing, and its associated expectations.

Factors determining review approach are varied, including departmental/discipline conventions, granting agency stipulations, evolving standards for evidence-based research (and the corollary need for documented, replicable search strategies), and available time and resources.

The standards are also continually evolving in light of changing technology and evidence-based research about literature review methodology effectiveness. The availability of new tools such as large-scale library search engines and sophisticated citation management software continues to influence the research process.

Some specific types of lit reviews types include systematic reviews , scoping reviews , realist reviews , narrative reviews , mapping reviews, and qualitative systematic reviews , just to name a few. The protocols and distinctions for review types are particularly delineated in health research fields, but we are seeing conventions quickly establishing themselves in other academic fields.

The below definitions are quoted from the very helpful book, Booth, A., Papaioannou, D., & Sutton, A. (2012). Systematic approaches to a successful literature review . London: SAGE Publications Ltd.

For more definitions, try:

• Grant, M.J. & Booth, A. (2009). A typology of reviews: an analysis of the 14 review types and associated methodologies. Health Information & Libraries Journal , 26(2), 91-108. doi: 10.1111/j.1471-1842.2009.00848.x
• Sage Research Methods Online. A database devoted to research methodology. Includes handbooks, encyclopedia entries, and a research concepts map.
• Research Methods
• Report Writing
• Research--Methodology
• Research--Methodology--Handbooks, manuals, etc.

Note:   There is unfortunately no subject heading specifically for "literature reviews" which brings together all related material.

Mapping Review : "A rapid search of the literature aiming to give a broad overview of the characteristics of a topic area. Mapping of existing research, identification of gaps, and a summary assessment of the quantity and quality of the available evidence helps to decide future areas for research or for systematic reviews." (Booth, Papaioannou & Sutton, 2012, p. 264)

Mixed Method Review : "A literature review that seeks to bring together data from quantitative and qualitative studies integrating them in a way that facilitates subsequent analysis" (Booth et al., p. 265).

Meta-analysis : "The process of combining statistically quantitative studies that have measured the same effect using similar methods and a common outcome measure" (Booth et al., p. 264).

Narrative Review: "A term used to describe a conventional overview of the literature, particularly when contrasted with a systematic review" (Booth et al., p. 265).

Note: this term is often used pejoratively, describing a review that is inadvertently guided by a confirmation bias.

Qualitative Evidence Synthesis : "An umbrella term increasingly used to describe a group of review types that attempt to synthesize and analyze findings from primary qualitative research studies" (Booth et al., p. 267).

Rapid Review : "Assessment of what is already known about a policy or practice issue, by using systematic review methods to search and critically appraise existing research" (Grant & Booth, 2009, p.96).

Note: Rapid reviews are often done when there are insufficient time and/or resources to conduct a systematic review. As stated by Butler et. al, "They aim to be rigorous and explicit in method and thus systematic but make concessions to the breadth or depth of the process by limiting particular aspects of the systematic review process" (as cited in Grant & Booth, 2009, p. 100). 

Scoping Review: "A type of review that has as its primary objective the identification of the size and quality of research in a topic area in order to inform subsequent review" (Booth et al., p. 269).

Systematic Review : "A review of a clearly formulated question that uses systematic and explicit methods to identify, select and critically appraise relevant research and to collect and analyse data from the studies that are included in the review" (Booth et al., p. 271).

Note : a systematic review (SR) is the most extensive and well-documented type of lit review, as well as potentially the most time-consuming. The idea with SRs  is that the search process becomes a replicable scientific study in itself. This level of review will possibly not be necessary (or desirable) for your research project.

Many lit review types are based on organization-driven specific protocols for conducting the reviews. These protocols provide specific frameworks, checklists, and other guidance to the generic literature review sub-types. Here are a few popular examples:

Cochrane Review - known as the "gold standard" of systematic reviews, designed by the Cochrane Collaboration. Primarily used in health research literature reviews.

• Cochrane Handbook for Systematic Reviews of Interventions . "The official document that describes in detail the process of preparing and maintaining Cochrane systematic reviews".

Campbell Review - the sister organization of the Cochrane Institute which focuses on systematic reviews in the social sciences.

• So you want to write a Campbell Systematic review?
• Campbell Information Retrieval Guide. The details of effective information searching

Literature Reviews in Psychology

A recent article in the  Annual Review of Psychology  provides a very helpful guide to conducting literature reviews specifically in the field of Psychology.

How to Do a Systematic Review: A Best Practice Guide for Conducting and Reporting Narrative Reviews, Meta-Analyses, and Meta-Syntheses. (2019). Annual Review of Psychology, 70 (1), 747-770. doi: 10.1146/annurev-psych-010418-102803

Rapid Reviews have become increasingly common due to their flexibility, as well as the lack of time and resources available to do a comprehensive systematic review. McMaster University's National Collaborating Centre for Methods and Tools (NCCMT) has created a  Rapid Review Guidebook , which "details each step in the rapid review process, with notes on how to tailor the process given resource limitations."  

Scoping Review

There is no strict protocol for a scoping review (unlike Campbell and Cochrane reviews). The following are some recommended guidelines for scoping reviews:

• Scoping Reviews  from the JBI Manual for Evidence Synthesis
• Current best practices for the conduct of scoping reviews, from the EQUATOR Network

In addition to protocols which provide holistic guidance for conducting specific kinds of reviews, there are also a vast number of frameworks, checklists, and other tools available to help focus your review and ensure comprehensiveness. Some provide broader-level guidance; others are targeted to specific parts of your reviews such as data extraction or reporting out results.

• PICO or PICOC A framework for posing a researchable question (population, intervention, comparisons, outcomes, context/environment)
• PRISMA Minimum items to report upon in a systematic review, as well as its extensions , such as  PRISMA-ScR (for scoping reviews)
• SALSA framework: frames the literature review into four parts: search (S), appraisal(AL), synthesis(S), analysis(A)
• STARLITE Minimum requirements for reporting out on literature reviews.
• Critical Appraisal Skills Program (CASP) Checklists Includes a checklist for evaluating Systematic Reviews.

These are just a sampling of specific guides generated from the ever-growing literature review industry.

Much of the online discussion about the use of Google Scholar in literature reviews seems to focus more on values and ideals, rather than a technical assessment of the search engine's role. Here are some things to keep in mind.

• It's good practice to use both Google Scholar and subject-specific databases (example: PsycINFO) for conducting a lit review of any type. For most graduate-level literature reviews, it is usually recommended to use both.
• You should search Google Scholar through the library's website when off-campus. This way you can avoid being prompted for payment to access articles that the SFU Library already subscribes to.
• Search tips for Google and Google Scholar

Google Advantages:

• Allows you to cast a wide net in your search.
• The most popular articles are revealed
• A high volume of articles are retrieved
• Google's algorithm helps compensate for poorly designed searches
• Full-text indexing of articles is now being done in Google Scholar
• A search feature allow you to search within articles citing your key article
• Excellent for known-item searching or locating a quote/citation
• Helpful when searching for very unique terminology (e.g., places and people)
• Times cited tool can help identify relevant articles
• Extensive searching of non-article, but academic, information items: universities' institutional repositories, US case law, grey literature , academic websites, etc.

Disadvantages:

• The database is not mapped to a specific discipline
• Much less search sophistication and manipulation supported
• Psuedo-Boolean operators
• Missing deep data (e.g., statistics)
• Mysterious algorithms and unknown source coverage at odds with the systematic and transparent requirement of a literature review.
• Searches are optimized (for example, by your location), thwarting the replicability criteria of most literature review types
• Low level of subject and author collocation - that is, bringing together all works by one author or one sub-topic
• Challenging to run searches that involve common words. A search for "art AND time", for example, might bring up results on the art of time management when you are looking for the representation of time in art. In contrast, searching by topic is readily facilitated by use of subject headings in discipline-specific databases. Google Scholar has no subject headings.
• New articles might not be pushed up if the popularity of an article is prioritized
• Indexes articles from predatory publishers , which may be hard to identify if working outside of your field

Unlike Google Scholar, subject specific databases such as  PsycINFO , Medline , or Criminal Justice Abstracts are mapped to a disciplinary perspective. Article citations contain high-quality and detailed metadata. Metadata can be used to build specific searches and apply search limits relevant to your subject area. These databases also often offer access to specialized material in your area such as grey literature , psychological tests, statistics, books and dissertations.

For most graduate-level literature reviews, it is usually recommended to use both. Build careful searches in the subject/academic databases, and check Google Scholar as well.

For most graduate-level lit reviews, you will want to make use of the subject headings (aka descriptors) found in the various databases.

Subject headings are words or phrases assigned to articles, books, and other info items that describe the subject of their content. They are designed to succinctly capture a document's concepts, allowing the researcher to retrieve all articles/info items about that concept using one term. By identifying the subject headings associated with your research areas, and subsequently searching the database for other articles and materials assigned with that same subject heading, you are taking a significant measure to ensure the comprehensiveness of your literature review.

About subject headings:

• They are applied systematically : articles and books will usually have about 3-8 subject headings assigned to their bibliographic record.
• The subject headings come from a finite pool of terms -  one that is updated frequently.
• They are often organized in a hierarchical taxonomy , with subject headings belonging to broader headings, and/or having narrower headings beneath them. Sometimes there are related terms (lateral) as well.
• They provide a standardized way to describe a concept. For instance, a subject heading of "physician" may be used to capture many of the natural language words that describe a physician such as doctor, family doctor, GP, and MD.

One way to identify subject headings (SHs) of interest to you is to start with a keyword search in a database, and see which SHs are associated with the articles of interest.

A. In the below example, we start with a keyword search for "type a" personality in PsycINFO .  A more contemporary term to describe this phenomena is then found in the subject heading field:

B. Another way to identify subject headings related to your topic is to go directly to a database's thesaurus or index. For example, if we are researching depression, the PsycINFO entry for major depression suggests some narrower terms we could focus our search by.

For more in-depth help with using subject headings in a literature review, please contact the Liaison Librarian in your subject area .

• NEW! Covidence . Covidence is a web-based literature review tool that will help you through the process of screening your references, data extraction, and keeping track of your work. Ideal for streamlining systematic reviews, scoping reviews, meta-analyses, and other related methods of evidence synthesis.
• NVivo is a robust software package that helps with management and analysis of qualitative information.The Library's Research Commons offers extensive support for NVivo.
• Research Support Software offered by the Research Commons

Citation management software such as Zotero, Mendeley, or Endnote is essential for completing a substantial lit review. Citation software is a centralized, online location for managing your sources. Specifically, it allows you to:

• Access and manage your sources online, all in one place
• Import references from library databases and websites
• Automatically generate bibliographies and in-text citations within Microsoft Word
• Share your collection of sources with others, and work collaboratively with references
• De-duplicate your search results* (*Note: Mendeley is not recommended for deduplication in systematic reviews.)
• Annotate your citations. Some software allows you to mark up PDFs.
• Note trends in your research such as which journals or authors you cite from the most.

More information on Citation Management Software

Did you know that many databases allow you to save  your search strategies? The advantages of saving and tracking your search strategies online in a literature review include:

• Developing your search strategy in a methodological manner, section by section. For instance, you can run searches for all synonyms and subjects headings associated with one concept, then combine them with different concepts in various combinations.
• Re-running your well-executed search in the future
• Creating search alerts based on a well-designed search, allowing you to stay notified of new research in your area
• Tracking and remember all of the searches you have done. Avoid inadvertently re-doing your searches by being well-documented and systematic as you go along - it's worth the extra effort!

Databases housed on the EBSCO plaform (examples: Business Source Complete, PsycINFO, Medline, Academic Search Premier) allow you to create an free account where you might save your searches:

• Using the EBSCOhost Search History - Tutorial [2:08]
• Creating a Search Alert in EBSCOhost - Tutorial [1:26]

Literature Reviews for Education and Nursing Graduate Students

(13 reviews)

Linda Frederiksen, Washington State University Vancouver

Sue F. Phelps, Washington State University Vancouver

Copyright Year: 2017

Publisher: Rebus Community

Language: English

Formats Available

Conditions of use.

Learn more about reviews.

Reviewed by Yolanda Griffiths, Professor of Occupational Therapy, Drake University on 12/15/21

The authors were thorough and very organized in stepping readers through the process of conducting and writing a literature review. Each area is appropriately indexed and examples are provided in a variety of ways. The synthesis section is... read more

Comprehensiveness rating: 5 see less

The authors were thorough and very organized in stepping readers through the process of conducting and writing a literature review. Each area is appropriately indexed and examples are provided in a variety of ways. The synthesis section is especially useful as students often do not understand what this means. Perhaps some content on plagiarism would benefit this section as well. The flow of the material easily guides users logically through each topic.

Content Accuracy rating: 5

The content is accurate and unbiased. The content is presented in an easy to understand way with videos, and examples.

Relevance/Longevity rating: 5

The relevance of the content is classic and the text should be pertinent for many years. The links included in the text are very useful and should be easy for authors to check periodically. Using a digital media is more relevant to today's students than print textbooks. Each section addresses a reasonable chunk of information.

Clarity rating: 5

The book is user friendly, written in an easy to understand manner, and graphics or links add to the understanding of the content. Definitions are clearly written. Such as clarifying the types of literature reviews will be useful for students. Providing a test yourself section at the end of sections allows the reader to check if any content was confusing or not clear.

Consistency rating: 5

The text is consistently laid out in a logical manner which helps to unpack content which may be new or unfamiliar to the reader/student.

Modularity rating: 5

The amount of content allocated to each chapter is appropriate and will be easy to assign readings. The chapter headings are clear and the embedded videos, charts and test questions enlighten each subunit. The hyperlinking in the table of contents helps to navigate the chapters well.

Organization/Structure/Flow rating: 5

The organization of the content is logical and easy to understand the process of completing a literature review. The book is laid out much like a road map where students can see the big picture as well as the supporting parts to the process. The references by chapter are very useful.

Interface rating: 5

The graphics were clear, and the non-serif font aids in eye fatigue. One recommendation is to lower the brightness of the bold blue text in the table of contents to reduce eye fatigue. There was no problem to play the videos and the audio was clear. All links worked well.

Grammatical Errors rating: 5

There were no grammatical errors. There were a few typos such as 1.3.1.8 needs a space between "A specific", 2.3 in the phrase "Articles by the type of periodical in which an article it is published" perhaps remove the word "it", in the table on page 41. under Nursing , the word clinical is spelled "Cclinical", remove the capital C.

Cultural Relevance rating: 5

No evidence of cultural bias or insensitivity.

I am very excited to use this textbook in my doctoral level occupational therapy class. The inclusion of concise explanations of PICO and SPICE will be very useful. This will be a wonderful resource for graduate students and being mindful of costs for textbooks is compassionate.

Reviewed by Susan Bassett, Instructor, Nursing Graduate Program, Eastern New Mexico University on 11/9/21

Each chapter presented a different aspect of doing a literature review. This was organized and orderly. The index/table of contents was very detailed which allowed the reader to easily use this book as a reference while conducting a literature... read more

Each chapter presented a different aspect of doing a literature review. This was organized and orderly. The index/table of contents was very detailed which allowed the reader to easily use this book as a reference while conducting a literature review.

The content appeared to be entirely accurate. It did a good job of combining information for both education and nursing students. The authors addressed pertinent points of research study development as well as the specific methodology of approaching a research-focused literature review.

The text was up-to-date in methodology, which should not change frequently. The many links to websites were very helpful and yet were basic enough that they should be relevant for years. If they do need updating, the are clearly presented and should be easily updated. The breakdown to very small "chunks" of information per section will help in easily updating specific parts of information.

The book presented a rather complex topic in an extremely straight-forward, easy to read, clear manner. Each small "chunk" of information was identified per section numbering which correlated with movement through the content. The writing was professional and yet not overwhelmed with discipline-specific terminology. Where potentially new terminology was presented, it was immediately followed with definitions and examples.

The book was well-organized and moved along the structure set out early in the book. Content was gradually unfolded, as divided per chapter. There was a bit of repetition (probably about three examples) where the authors attempted to tie information together. Although this stood out to a reader, it seemed more useful in organizing than detrimental in repetition.

The book was subdivided into chapters and then into many small modules of discrete information. It could easily be assigned in part. It could also readily be used as a reference for students to go back and easily find processes or pieces of information they might need later.

I found the continual clear and succinct organization of information to be a defining highlight of this book. When presenting early steps of the research process and then linking these steps with how to conduct a literature review and subsequenty organize and write a literature review, this book is presenting numerous procews steps that must work in tandem. This book did that in a clear and easily readable fashion.

The one feature that did distract me was within the bullet points of 1.3.1. "Types of Reviews". There was a mix of complete and incomplete sentences that worked to convey information succinctly, but distracted me as a reader.

Grammatical Errors rating: 4

I did find several spelling and grammaticl errors (1.3.1.8, , 1.3.1.9, 2.1.1, 2.3, 2.3.1.1, , 2.3.1.4, 2.3 Table A., p. 41, p. 53, p. 54). Although small errors (a few letters or spacing) they should be corrected.

I did not find any mistakes in cultural appropriateness The content did repeatedly talk about bias reduction in the process of writing a literature review

I thought this book was very well-written and contained great information for my students. The links provided were very appropriate and helpful. The Table "Guide to searching for literature at various stages of the scholarly communication process” was particularly helpful. I will immediately begin using portions of the content in this book to support my research class. Additionally, I will recommend the entire book as a reference for the dedicated student (or one intending to go forward to a doctoral level of education in nursing). Thank you for collating all this information and helpful links into one clear, easily readable and understandable document.

Reviewed by Leah Nillas, Associate Professor, Illinois Wesleyan University on 9/6/21

This book addresses the basic steps in the process of writing a literature review research. Chapter 2 (What is a Literature Review?) needs to be retitled. I think Chapter 1 (Introduction) clearly defines and characterizes literature review as a... read more

Comprehensiveness rating: 4 see less

This book addresses the basic steps in the process of writing a literature review research. Chapter 2 (What is a Literature Review?) needs to be retitled. I think Chapter 1 (Introduction) clearly defines and characterizes literature review as a research category. Chapter 2 focuses more on the creation of information, information cycle, and selecting appropriate sources. Chapter 7 (Synthesizing Sources) and Chapter 8 (Writing the Lit Review) can still be improved to incorporate specific strategies in synthesizing research literature and examples of writing styles through analysis of a variety of published examples. Writing a synthesis is a challenging skill for most novice researchers.

Information shared is accurate. I did not notice any content error.

Relevance/Longevity rating: 4

Main content is up-to-date. A few citations maybe dated but they are necessary in illustrating different examples of literature reviews. It will be easy to include additional relevant examples of research work that are published recently.

I like how this text is written. Tone is reader friendly and narrative is accessible to novice researchers.

Clearly consistent throughout the chapters.

Clear and purposeful "chunking" of information per chapter.

Readers can easily follow the organization of topics and content.

No obvious interface issues. Appropriate use of multimedia tools.

No grammatical errors.

Text is culturally sensitive. Additional readings, references, or examples can easily be added to incorporate research conducted by diverse authors or literature reviews which focus on diversity and inclusion issues in education and nursing.

This is a good introductory literature review text even for undergraduate education students. Clear discussion of the nature of the research and the writing process. The use of videos and images is helpful in providing multimodal approach in explaining topics or processes. Writing style and tone make the text accessible to novice researchers.

Reviewed by Rebecca Scheckler, Assistant Professor, Radford University on 7/6/20

Two missing topics were inter-library loan and how to avoid plagiarism in writing up the literature review. This second is such an important topic that it deserves its own chapter. read more

Two missing topics were inter-library loan and how to avoid plagiarism in writing up the literature review. This second is such an important topic that it deserves its own chapter.

It is accurate. I found no inaccuracies.

This book is very relevant. Every advanced undergraduate or graduate students requires such a book

I found the book clear. The videos interspersed within the book added much to the clarity. There are lots of good diagrams that add to the clarity. They are not all original but their sources are all cited. The section on boolean searches, usage of asterisks and quotes in searches is very helpful and appropriate although often left out of discussion of searches.

The book is consistent in terminology and framework.

The chapters were cohesive.

Organization/Structure/Flow rating: 4

I like the links to within the text to the references and other matter. What is needed are back links to the text from the references. I also would have liked links from the exercises to the answers of the exercises.

Interface rating: 4

See navigation links mentioned above. The grey literature link is broken.

I saw no grammatical problems. There are many bulleted lists rather than text which is appropriate to this topic.

There could be more attention to cultural context in the frequent examples.

I wondered why nursing and education were combined. They are similar in nature but not identical. separation them out into two books might be appropriate.

Reviewed by Lisa Shooman, Associate Professor, Worcester State University on 6/29/20

Overall, this book provides a very comprehensive and thorough roadmap for creating a literature review. The videos assist the reader in crystallizing the information presented in the text. There is an effective index and glossary that provide... read more

Overall, this book provides a very comprehensive and thorough roadmap for creating a literature review. The videos assist the reader in crystallizing the information presented in the text. There is an effective index and glossary that provide helpful navigation to the reader.

The content is detailed, clearly explained, error-free, and unbiased. My students would greatly benefit from the lucid information presented in this text to guide them with developing a literature review. I would be eager to adopt this book for my students.

The content is timely and will not be quickly out-of-date. The quiz questions at the end of each chapter are relevant and will aid students with the consolidation of the material. The online format allows for updating, and the version history at the end of the text clearly indicated that the book was updated recently.

The text is clear and not ridden with any excess jargon /technical terminology. Pictures, graphics, and videos further elucidate the text. There are helpful questions that stimulate thought and lists that help to organize information.

The internal consistency in the text is excellent. However, Chapter 1.1 and Chapter 2 have the same title and it would benefit the reader to have different titles that would highlight the differences between these two sections. Chapter 1.1 is an overview and Chapter 2 dives into more depth.

The text is efficiently divided into smaller reading sections that are demarcated by numbers. The subsections in each chapter can be assigned at different points in the course. The text is organized logically and systematically that assists the reader with comprehension and provides a roadmap for creating an effective literature review.

The entire text is presented coherently and concisely. The organization of the text takes the reader through the process of creating an effective literature review. It can be used by multiple health professions, although the length of the text is relatively short it includes a considerable depth of the material. Other disciplines that would benefit from using this test in their courses may include occupational therapy, physical therapy, and speech and language pathology students.

The interface of the text is simple and easy to follow. The cover of the text would benefit from photos, color, and graphic design to appeal to the modern digital reader.

No grammatical or spelling errors are noted.

No cultural biases existed in the text in any way. There are no individuals highlighted in the book, and due to the technical nature of the subject matter, the text is inclusive to a variety of races, ethnicities, and backgrounds. No offensive statements are included in this book.

The authors should consider including other health professionals in the title and provide examples that can relate to other health professionals throughout the text. Other health professionals that can benefit from reading this text include occupational therapy, physical therapy, and speech and language pathology students. Literature reviews are relevant for many health professionals in their master's and doctorate programs and the text could serve a wider audience.

Reviewed by Ellen Rearick, Assistant Professor, Framingham State University on 6/1/20

This text covers all areas and the process of the integrative review appropriately. It is an engaging text for graduate students new to these assignments. read more

This text covers all areas and the process of the integrative review appropriately. It is an engaging text for graduate students new to these assignments.

This text is well done, very accurate

This text is relevant. The updates needed regarding APA format should be relatively easy to implement.

This text is clear and provides users with definitions and examples of the variety of reviews.

Very well written using consistent terminology throughout.

The text's reading sections are easily accessible and users will find them organized. Each chapter and its sections are presented in the sequence of the process of an integrative review.

Very clear and logical order.

The navigation of this text was problem-free.

No grammatical errors noted.

No issues with cultural insensitivity noted.

This was a well-organized text using videos to reinforce content that would benefit any education or nursing graduate student new to the integrative review process.

Reviewed by Ruth Stoltzfus, Professor of Nursing; Dir., Grad Programs in Nursing, Goshen College on 6/1/19

This text provides everything a graduate student needs to write a literature review in a concise manner. If you look at the digital pdf, there are many strategies to help the reader learn the process - videos, diagrams, and also text. read more

This text provides everything a graduate student needs to write a literature review in a concise manner. If you look at the digital pdf, there are many strategies to help the reader learn the process - videos, diagrams, and also text.

I found no evidence of bias and no errors.

This book has long-term relevance. The content will not quickly out-date.

I really liked the way the textbook is structured. The author is concise which makes the textbook easy to read.

I found no inconsistencies in terminology or other aspects related to the content.

I will adopt this text for a research course I use and will likely assign only specific chapters. I plan to recommend the textbook to another faculty who teaches a comprehensive research course with the idea of assigning only specific sections to read..

The textbook begins with an introduction to the subject matter. Subsequent chapters develop specific aspects related to lit reviews. The textbook provides a nice "how to" for each element of a lit review. Chapters are also organized in a smooth, easy to follow format.

I only looked at the digital pdf and print pdf versions. The print pdf indicates that there are videos to watch, but of course since it is a print pdf, there is no linkage. I think this would be obvious to a savvy reader - that a print pdf will be limited in what the reader can access.

I found no grammatical errors in my quick read.

I found no evidence of cultural bias or insensitivity.

This is the first open textbook that I have encountered. I was expecting it to be flat and boring! However, it was neither of those. There were color diagrams, color photos, and even videos embedded in the textbook.

I have adopted this book for the Research Lit Review course that I am teaching soon. I am impressed!

Reviewed by Melissa Wells, Assistant Professor, University of Mary Washington on 5/1/19

This book helps students in education and nursing complete a literature review, which may be the first time these students are tackling such a task. The chapters break down the process into defining the special genre of a literature review;... read more

This book helps students in education and nursing complete a literature review, which may be the first time these students are tackling such a task. The chapters break down the process into defining the special genre of a literature review; providing tips to get started; suggesting where students can find literature to review; explaining how to evaluate sources; detailing the process of documenting sources; giving advice for synthesizing sources; and finally, putting all of these pieces together into a final literature review. Most significantly, the text provides specific examples of ideas presented in the context of both nursing and education, which makes the content directly relatable to the student's course of study. The conclusion recaps the main points of each chapter in bullet form. The text is lacking both an index and a glossary, which would be additions that could strengthen the text.

Content Accuracy rating: 4

The text explains 11 different types of literature reviews that students may encounter or be asked to create. Also, the text is framed to work with multiple methodologies; for example, steps for writing a research question or a hypothesis to frame the literature review are provided. One inconsistency I noted was in diagram 6.2: the APA citation is incorrectly capitalized for the journal title (which should use sentence, not title, capitalization).

The text also includes external links to sources, such as a videos, which provide students with multiple modalities in which to digest the information. An example of a literature review for both education and nursing is provided at the end of the book; instead of embedding these in the text, the hyperlinks refer the reader to the external site. This will be easy to change to a new example in the future, but checks will need to be done to ensure that all such external sources remain actively accessible.

Each chapter opens with learning objectives to help frame the content with which the reader is about to engage. Throughout the text, the language is approachable and reader-friendly. For example, when the text explains more factual components (i.e., what makes a literature review or what the basics of an effective literature review include), this information is presented in bullet points with hyperlinks to the original sources.

Each chapter follows a similar construction, which makes it accessible to the reader. For example, chapters end with a "Practice" and "Check Yourself" section to apply new learning and self-check responses (an answer key is provided in an appendix). Examples in these exercises are either related to nursing or education, continuing with the stated theme of the text.

When I used this text with my own students, I assigned chapters in isolation, since they had already taken a research methods course and were applying that knowledge to create a research proposal in a specific area of study in my course.

The book is organized in such a way that logically walks the reader through the literature review writing process. Clear headings (which are hyperlinked in the table of contents) also allow the reader to jump to specific parts with which they need additional support.

The interface of this document offered a lot of flexibility. Options allowed users to access the text online, or as a download in multiple file types (EPUB, Digital PDF, MOBI, XHTML, Pressbooks XML, Wordpress XML, and Open Document). These formats provide the reader with an opportunity to pick the interface that works best for them.

I did not see any grammatical errors in the text.

Cultural Relevance rating: 4

No culturally insensitive/offensive content was noted. A variety of examples of research topics were included from both nursing and education. Of the images/video thumbnails embedded in the text that involved people, all depicted White people except for 2 images; therefore, more intentional selection of culturally diverse visuals would be helpful in future versions of this text.

I feel this text was helpful to my students as they wrote their own literature reviews. The only weakness in their papers that I noted was their organization of their literature review based on themes/topic, which was addressed in Chapters 7- 8. I now know to focus more on this part of literature review writing with future students. This text is approachable and field-specific, and I will be using it again!

Reviewed by Bernita (Bernie) Missal, Professor, Bethel University on 12/14/18

This book includes all areas that a graduate student needs to begin a literature review. However metasynthesis could have also been included in types of literature review. read more

This book includes all areas that a graduate student needs to begin a literature review. However metasynthesis could have also been included in types of literature review.

This book is accurate although missing qualitative research.

Although content is up to date, some of the article examples need to be updated. (Example: articles published in 1981 and 1992 need to be updated to more recent articles.)

The book is clear and easy to follow. Bullet points were used throughout the book with short paragraphs which helps the student.

Each chapter follows the same format with narrative followed by practice and test questions.

Clear subheadings are used throughout the book.

This book is presented in a logical way and easy for the student to follow.

Images are clear and appropriate for the content.

No specific grammar issues were seen.

It would be helpful for students to include additional examples of cultural studies throughout the book

This book is an excellent resource for graduate students. It has helpful information for the preparation and process for a literature review. Examples of written literature reviews in chapter 8 or in an appendix would be helpful for students.

Reviewed by Nancyruth Leibold, Associate Professor, Southwest Minnesota State University on 6/19/18

The text is overall comprehensive, yet it breaks the information up into manageable parts. See the table of contents for an overview of the topics. The text is very quantitative driven in that the focus is on reviewing quantitative studies. The... read more

The text is overall comprehensive, yet it breaks the information up into manageable parts. See the table of contents for an overview of the topics. The text is very quantitative driven in that the focus is on reviewing quantitative studies. The book included information about PICO statements, but did not include PICO(T) or the time variable, which is not always used in every case. Population was included in the PICO explanation, but a bit more information on the population or aggregate narrowing could improve the PICO section. These items do not hinder use of the book, but these items would need further inclusion by the faculty member using the text as specific to the discipline.

The content in the book is very accurate.

The content in the book is current and should not be obsolete within a short period of time. Any updates would be easy to add.

The text is clear and easy to understand.

The internal organization and terminology of the book is consistent and logical

The text is set up in small reading sessions. The videos and learning activities are well done and break up some of the content, so there is a variety of presentation. The tutorials, figures, practice and self-test areas are also fantastic in that they are quality and sprinkled throughout the text.

The topics in the book are presented in clear and organized fashion. I particularly like the upbeat and personal writing tone of the book. This tone makes it seem like the authors are speaking to me.

The text is free of any significant interface issues. The book is available in many formats. I used the book online and I did have one navigational problem and that is when clicking on a video, it does not open in a new tab and so the book is lost and have to start over going in the start to the book. One easy solution to this is to right click your mouse and then select open in new tab to watch videos. That way, your place in the book is not lost.

No grammar problems present.

The book is not culturally insensitive or offensive in any way.

Overall, this is a well written textbook and I recommend it!

Reviewed by Marjorie Webb, Professor, Metropolitan State University on 6/19/18

From the Introduction to the Conclusion, the text covers the step-by-step process of conducting a literature review. The text includes topics such as, “Where to find the Literature” and “Synthesizing Sources” that will be useful to graduate... read more

From the Introduction to the Conclusion, the text covers the step-by-step process of conducting a literature review. The text includes topics such as, “Where to find the Literature” and “Synthesizing Sources” that will be useful to graduate nursing students.

The content in the text, including texts, links, and diagrams, is accurate and unbiased. Again, it will aid the graduate nursing student in the long process of conducting a literature review.

The text is current and this type of material does not become dated quickly. The authors did use internet links in the text which will need to be monitored periodically to ensure they are still available. Updates to the text will be relatively easy and straightforward. If media styles change, there may be some challenges to updating.

The text is clear and easy to read. Technical terminology is defined and/or explained.

The text is internally consistent.

The text is organized in sections which facilitates assigning readings based on the subject matter for the class time. It would be pretty easy to divide up this text into easily readable units based on headings and subheadings.

This text is structured well. The topics flow in an organized manner and really help the student see the process of a literature review. The authors discuss the both theory and purpose of the review and the day-to-day logistics of actually performing the review. The day-today organization is not always included in other texts.

The interface is well-done with no distractions.

There was no indication of cultural bias.

I think this text is appropriate for graduate nursing students. Some students struggle with the difference between writing about a topic (generally undergraduate writing) and synthesizing literature on a given topic (generally graduate writing). Chapters seven and eight focus on preparing the graduate student to make the jump to graduate-level writing and should really benefit new graduate students.

Reviewed by Susanna Thornhill, Associate Professor , George Fox University on 3/27/18

This book is fairly comprehensive and offers step-by-step instructions for conceptualizing/researching a literature review. The Table of Contents is well-organized to reflect the book's progression, from establishing the basics of why to write a... read more

This book is fairly comprehensive and offers step-by-step instructions for conceptualizing/researching a literature review. The Table of Contents is well-organized to reflect the book's progression, from establishing the basics of why to write a literature review and the various types of literature reviews, to getting started with formulating a research idea/question, finding and evaluating sources, synthesizing sources, and guidelines on writing the literature review, itself. I found this text to be a straightforward guide for my graduate students in education, and while I worried at first that the merging of education and nursing topics would prove distracting to my education students, I don't believe this was the case.

One thing that was not comprehensive in this book was discussion of qualitative research and methodologies as a valid means of conceptualizing research aims. I hoped for a more balanced discussion between methodological branches as it applied to literature reviews; this book overly favored quantitative methodologies and studies in terms of its direction to readers about how to conceptualize/choose a topic and design a research question in relation to it. Variables that cannot be measured are not inherently un-researchable, which is the conclusion put forth in this textbook. This might serve nursing students better than education students in terms of their discipline's requirements, but it still represents an element that could be improved.

Finally, while the background on what a literature review is, how to conceptualize research, and how to search for and synthesize research was all valuable, the chapter on actually writing the literature review was a bit thin, simply offering tips for introduction, body, and conclusion and some questions for self-evaluation. Some of the most difficult work for students writing a literature review is achieving proper focus, organization, hierarchy of themes, balance in treatment of related topics, etc. None of these issues were discussed in the chapter pertaining to the writing of a literature review.

I did not have any concerns about the book's accuracy. Content was accurate, albeit biased to quantitative and positivist views of research. I would have liked to see it include additional prompts to support students in conceptualizing and valuing qualitative research; this is an area where I had to supplement course readings with additional texts.

The only significant error I could discern in the text was a lack of an Answer Key corresponding to the questions posed at the end of each chapter.

Content is up-to-date and seems like it will hold meaning well over the next few years. The only things I anticipate might go out-of-date is technological information on things like citation managers, search guidelines, and database information. This is easily updatable with future versions of the text. In my view, ERIC is not the best database for educational research and I have confirmed this with educational librarians who support my students, yet it is the only one identified in this text as the best subject-specific source of educational research; this could be revised for additional relevance.

I noticed no issues with the book's clarity. The authors write in a clear and straightforward style, making the text easy to read. Overall, they did well writing for students across two disciplines by avoiding nursing or education-specific terms that would have been problematic to readers in the other discipline.

The book is internally consistent and did not have issues with terminology or framework.

No issues with the book's modularity. Chapter headings and sub-headings were appropriately paced and spaced. I assigned this textbook to my graduate students as a whole text that I wanted them to read at the beginning of a course, but it has been easy to refer them back to particular topics as the course has continued.

In future iterations of the book, I suggest hyperlinking the Answer Key to the exercises at the end of each chapter and/or listing the Answer Key in the Table of Contents for easy referral.

I found the book's organization to be straightforward and sensible. The Table of Contents offers a helpful snapshot of the scope of the book and the authors write in a direct and clear style, which contributes to an appropriate flow for the text.

I did not note any navigation problems with any links. All charts/images loaded well in my iBook app. The authors did a nice job of pulling relevant content and links in to support their ideas; it provided an easy way to seek more information if I wanted it, without feeling like the text was loaded down with unnecessary information.

I only found a few small typos in the text, with no grammar issues. The book is obviously written by two very detail-oriented librarians. I appreciated the clarity of the text and lack of errors.

The text was not culturally insensitive; a variety of topics across nursing and education were discussed as examples, which yielded a fairly balanced text regarding cultural considerations.

Reviewed by Alicia Rossiter, Assistant Professor, University of South Florida on 3/27/18

I believe the book gives a comprehensive overview on how to complete a literature view at the graduate level. It begins with an overview of the purpose of a literature review and moves through the steps to completing the review process. read more

I believe the book gives a comprehensive overview on how to complete a literature view at the graduate level. It begins with an overview of the purpose of a literature review and moves through the steps to completing the review process.

I believe the book was accurate and unbiased. It was easy to read but comprehensive.

Content within the text is relevant and supports the literature view process. It did discuss the various databases for searches which may need updating to include new sites, search engines but otherwise relevant and useful information.

The text is easy to read, provides appropriate examples, includes a section on putting the process into practice as well as a "test yourself" section to ensure the content is understood.

The text is consistent throughout in regards to terminology, framework, and set up.

The text is easy to read and content is leveled for the reader but not over simplified. Content is chunked into sections making it easy for the reader to digest the content. The chapters are well laid out and flow from chapter to chapter. Each chapter contains learning objectives, content sections, practice section, and test yourself section. Well organized and great visuals.

Topics are presented in a logical, clear fashion that flow from chapter to chapter and build as the reader moves through the process.

The text is free of interface issues. I could not get the videos to play but other visuals were appropriate and useful to support content.

The text contains no grammatical errors.

The text is not culturally offensive. There was no evidence of bias or cultural insensitivity.

I think this would be a great resource for graduate student learning to navigate the literature review process. It is easy to read, straightforward, and guides the individual through the process from start to finish. I will recommend this text to my graduate students in evidence-based practice and research courses as a recommended reference.

Table of Contents

• Chapter 1: Introduction
• Chapter 2: What is a Literature Review?
• Chapter 3: How to Get Started
• Chapter 4: Where to Find the Literature
• Chapter 5: Evaluating Sources
• Chapter 6: Documenting Sources
• Chapter 7: Synthesizing Sources
• Chapter 8: Writing the Literature Review

Ancillary Material

About the book.

Literature Reviews for Education and Nursing Graduate Students is an open textbook designed for students in graduate-level nursing and education programs. Its intent is to recognize the significant role the literature review plays in the research process and to prepare students for the work that goes into writing one. Developed for new graduate students and novice researchers just entering into the work of a chosen discipline, each of the eight chapters covers a component of the literature review process. Students will learn how to form a research question, search existing literature, synthesize results and write the review. The book contains examples, checklists, supplementary materials, and additional resources. Literature Reviews for Education and Nursing Graduate Students is written by two librarians with expertise guiding students through research and writing assignments, and is openly licensed.

About the Contributors

Linda Frederiksen is the Head of Access Services at Washington State University Vancouver.  She has a Master of Library Science degree from Emporia State University in Kansas. Linda is active in local, regional and national organizations, projects and initiatives advancing open educational resources and equitable access to information.

Sue F. Phelps is the Health Sciences and Outreach Services Librarian at Washington State University Vancouver. Her research interests include information literacy, accessibility of learning materials for students who use adaptive technology, diversity and equity in higher education, and evidence based practice in the health sciences

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Ten Simple Rules for Writing a Literature Review

Marco pautasso.

1 Centre for Functional and Evolutionary Ecology (CEFE), CNRS, Montpellier, France

2 Centre for Biodiversity Synthesis and Analysis (CESAB), FRB, Aix-en-Provence, France

Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific publications [1] . For example, compared to 1991, in 2008 three, eight, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, respectively [2] . Given such mountains of papers, scientists cannot be expected to examine in detail every single new paper relevant to their interests [3] . Thus, it is both advantageous and necessary to rely on regular summaries of the recent literature. Although recognition for scientists mainly comes from primary research, timely literature reviews can lead to new synthetic insights and are often widely read [4] . For such summaries to be useful, however, they need to be compiled in a professional way [5] .

When starting from scratch, reviewing the literature can require a titanic amount of work. That is why researchers who have spent their career working on a certain research issue are in a perfect position to review that literature. Some graduate schools are now offering courses in reviewing the literature, given that most research students start their project by producing an overview of what has already been done on their research issue [6] . However, it is likely that most scientists have not thought in detail about how to approach and carry out a literature review.

Reviewing the literature requires the ability to juggle multiple tasks, from finding and evaluating relevant material to synthesising information from various sources, from critical thinking to paraphrasing, evaluating, and citation skills [7] . In this contribution, I share ten simple rules I learned working on about 25 literature reviews as a PhD and postdoctoral student. Ideas and insights also come from discussions with coauthors and colleagues, as well as feedback from reviewers and editors.

Rule 1: Define a Topic and Audience

How to choose which topic to review? There are so many issues in contemporary science that you could spend a lifetime of attending conferences and reading the literature just pondering what to review. On the one hand, if you take several years to choose, several other people may have had the same idea in the meantime. On the other hand, only a well-considered topic is likely to lead to a brilliant literature review [8] . The topic must at least be:

• interesting to you (ideally, you should have come across a series of recent papers related to your line of work that call for a critical summary),
• an important aspect of the field (so that many readers will be interested in the review and there will be enough material to write it), and
• a well-defined issue (otherwise you could potentially include thousands of publications, which would make the review unhelpful).

Ideas for potential reviews may come from papers providing lists of key research questions to be answered [9] , but also from serendipitous moments during desultory reading and discussions. In addition to choosing your topic, you should also select a target audience. In many cases, the topic (e.g., web services in computational biology) will automatically define an audience (e.g., computational biologists), but that same topic may also be of interest to neighbouring fields (e.g., computer science, biology, etc.).

Rule 2: Search and Re-search the Literature

After having chosen your topic and audience, start by checking the literature and downloading relevant papers. Five pieces of advice here:

• keep track of the search items you use (so that your search can be replicated [10] ),
• keep a list of papers whose pdfs you cannot access immediately (so as to retrieve them later with alternative strategies),
• use a paper management system (e.g., Mendeley, Papers, Qiqqa, Sente),
• define early in the process some criteria for exclusion of irrelevant papers (these criteria can then be described in the review to help define its scope), and
• do not just look for research papers in the area you wish to review, but also seek previous reviews.

The chances are high that someone will already have published a literature review ( Figure 1 ), if not exactly on the issue you are planning to tackle, at least on a related topic. If there are already a few or several reviews of the literature on your issue, my advice is not to give up, but to carry on with your own literature review,

The bottom-right situation (many literature reviews but few research papers) is not just a theoretical situation; it applies, for example, to the study of the impacts of climate change on plant diseases, where there appear to be more literature reviews than research studies [33] .

• discussing in your review the approaches, limitations, and conclusions of past reviews,
• trying to find a new angle that has not been covered adequately in the previous reviews, and
• incorporating new material that has inevitably accumulated since their appearance.

When searching the literature for pertinent papers and reviews, the usual rules apply:

• be thorough,
• use different keywords and database sources (e.g., DBLP, Google Scholar, ISI Proceedings, JSTOR Search, Medline, Scopus, Web of Science), and
• look at who has cited past relevant papers and book chapters.

Rule 3: Take Notes While Reading

If you read the papers first, and only afterwards start writing the review, you will need a very good memory to remember who wrote what, and what your impressions and associations were while reading each single paper. My advice is, while reading, to start writing down interesting pieces of information, insights about how to organize the review, and thoughts on what to write. This way, by the time you have read the literature you selected, you will already have a rough draft of the review.

Of course, this draft will still need much rewriting, restructuring, and rethinking to obtain a text with a coherent argument [11] , but you will have avoided the danger posed by staring at a blank document. Be careful when taking notes to use quotation marks if you are provisionally copying verbatim from the literature. It is advisable then to reformulate such quotes with your own words in the final draft. It is important to be careful in noting the references already at this stage, so as to avoid misattributions. Using referencing software from the very beginning of your endeavour will save you time.

Rule 4: Choose the Type of Review You Wish to Write

After having taken notes while reading the literature, you will have a rough idea of the amount of material available for the review. This is probably a good time to decide whether to go for a mini- or a full review. Some journals are now favouring the publication of rather short reviews focusing on the last few years, with a limit on the number of words and citations. A mini-review is not necessarily a minor review: it may well attract more attention from busy readers, although it will inevitably simplify some issues and leave out some relevant material due to space limitations. A full review will have the advantage of more freedom to cover in detail the complexities of a particular scientific development, but may then be left in the pile of the very important papers “to be read” by readers with little time to spare for major monographs.

There is probably a continuum between mini- and full reviews. The same point applies to the dichotomy of descriptive vs. integrative reviews. While descriptive reviews focus on the methodology, findings, and interpretation of each reviewed study, integrative reviews attempt to find common ideas and concepts from the reviewed material [12] . A similar distinction exists between narrative and systematic reviews: while narrative reviews are qualitative, systematic reviews attempt to test a hypothesis based on the published evidence, which is gathered using a predefined protocol to reduce bias [13] , [14] . When systematic reviews analyse quantitative results in a quantitative way, they become meta-analyses. The choice between different review types will have to be made on a case-by-case basis, depending not just on the nature of the material found and the preferences of the target journal(s), but also on the time available to write the review and the number of coauthors [15] .

Rule 5: Keep the Review Focused, but Make It of Broad Interest

Whether your plan is to write a mini- or a full review, it is good advice to keep it focused 16 , 17 . Including material just for the sake of it can easily lead to reviews that are trying to do too many things at once. The need to keep a review focused can be problematic for interdisciplinary reviews, where the aim is to bridge the gap between fields [18] . If you are writing a review on, for example, how epidemiological approaches are used in modelling the spread of ideas, you may be inclined to include material from both parent fields, epidemiology and the study of cultural diffusion. This may be necessary to some extent, but in this case a focused review would only deal in detail with those studies at the interface between epidemiology and the spread of ideas.

While focus is an important feature of a successful review, this requirement has to be balanced with the need to make the review relevant to a broad audience. This square may be circled by discussing the wider implications of the reviewed topic for other disciplines.

Rule 6: Be Critical and Consistent

Reviewing the literature is not stamp collecting. A good review does not just summarize the literature, but discusses it critically, identifies methodological problems, and points out research gaps [19] . After having read a review of the literature, a reader should have a rough idea of:

• the major achievements in the reviewed field,
• the main areas of debate, and
• the outstanding research questions.

It is challenging to achieve a successful review on all these fronts. A solution can be to involve a set of complementary coauthors: some people are excellent at mapping what has been achieved, some others are very good at identifying dark clouds on the horizon, and some have instead a knack at predicting where solutions are going to come from. If your journal club has exactly this sort of team, then you should definitely write a review of the literature! In addition to critical thinking, a literature review needs consistency, for example in the choice of passive vs. active voice and present vs. past tense.

Rule 7: Find a Logical Structure

Like a well-baked cake, a good review has a number of telling features: it is worth the reader's time, timely, systematic, well written, focused, and critical. It also needs a good structure. With reviews, the usual subdivision of research papers into introduction, methods, results, and discussion does not work or is rarely used. However, a general introduction of the context and, toward the end, a recapitulation of the main points covered and take-home messages make sense also in the case of reviews. For systematic reviews, there is a trend towards including information about how the literature was searched (database, keywords, time limits) [20] .

How can you organize the flow of the main body of the review so that the reader will be drawn into and guided through it? It is generally helpful to draw a conceptual scheme of the review, e.g., with mind-mapping techniques. Such diagrams can help recognize a logical way to order and link the various sections of a review [21] . This is the case not just at the writing stage, but also for readers if the diagram is included in the review as a figure. A careful selection of diagrams and figures relevant to the reviewed topic can be very helpful to structure the text too [22] .

Rule 8: Make Use of Feedback

Reviews of the literature are normally peer-reviewed in the same way as research papers, and rightly so [23] . As a rule, incorporating feedback from reviewers greatly helps improve a review draft. Having read the review with a fresh mind, reviewers may spot inaccuracies, inconsistencies, and ambiguities that had not been noticed by the writers due to rereading the typescript too many times. It is however advisable to reread the draft one more time before submission, as a last-minute correction of typos, leaps, and muddled sentences may enable the reviewers to focus on providing advice on the content rather than the form.

Feedback is vital to writing a good review, and should be sought from a variety of colleagues, so as to obtain a diversity of views on the draft. This may lead in some cases to conflicting views on the merits of the paper, and on how to improve it, but such a situation is better than the absence of feedback. A diversity of feedback perspectives on a literature review can help identify where the consensus view stands in the landscape of the current scientific understanding of an issue [24] .

Rule 9: Include Your Own Relevant Research, but Be Objective

In many cases, reviewers of the literature will have published studies relevant to the review they are writing. This could create a conflict of interest: how can reviewers report objectively on their own work [25] ? Some scientists may be overly enthusiastic about what they have published, and thus risk giving too much importance to their own findings in the review. However, bias could also occur in the other direction: some scientists may be unduly dismissive of their own achievements, so that they will tend to downplay their contribution (if any) to a field when reviewing it.

In general, a review of the literature should neither be a public relations brochure nor an exercise in competitive self-denial. If a reviewer is up to the job of producing a well-organized and methodical review, which flows well and provides a service to the readership, then it should be possible to be objective in reviewing one's own relevant findings. In reviews written by multiple authors, this may be achieved by assigning the review of the results of a coauthor to different coauthors.

Rule 10: Be Up-to-Date, but Do Not Forget Older Studies

Given the progressive acceleration in the publication of scientific papers, today's reviews of the literature need awareness not just of the overall direction and achievements of a field of inquiry, but also of the latest studies, so as not to become out-of-date before they have been published. Ideally, a literature review should not identify as a major research gap an issue that has just been addressed in a series of papers in press (the same applies, of course, to older, overlooked studies (“sleeping beauties” [26] )). This implies that literature reviewers would do well to keep an eye on electronic lists of papers in press, given that it can take months before these appear in scientific databases. Some reviews declare that they have scanned the literature up to a certain point in time, but given that peer review can be a rather lengthy process, a full search for newly appeared literature at the revision stage may be worthwhile. Assessing the contribution of papers that have just appeared is particularly challenging, because there is little perspective with which to gauge their significance and impact on further research and society.

Inevitably, new papers on the reviewed topic (including independently written literature reviews) will appear from all quarters after the review has been published, so that there may soon be the need for an updated review. But this is the nature of science [27] – [32] . I wish everybody good luck with writing a review of the literature.

Acknowledgments

Many thanks to M. Barbosa, K. Dehnen-Schmutz, T. Döring, D. Fontaneto, M. Garbelotto, O. Holdenrieder, M. Jeger, D. Lonsdale, A. MacLeod, P. Mills, M. Moslonka-Lefebvre, G. Stancanelli, P. Weisberg, and X. Xu for insights and discussions, and to P. Bourne, T. Matoni, and D. Smith for helpful comments on a previous draft.

Funding Statement

This work was funded by the French Foundation for Research on Biodiversity (FRB) through its Centre for Synthesis and Analysis of Biodiversity data (CESAB), as part of the NETSEED research project. The funders had no role in the preparation of the manuscript.

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How to Write a Literature Review for Research: Guide, Structure & Template Examples

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A literature review is a critical analysis of published research on a particular topic. It involves reviewing and analyzing a range of sources, such as academic articles, books, and reports. Students conduct a literature review before writing a research paper or dissertation to gain an understanding of the existing knowledge and recognize areas for further exploration.

Evaluating scholarly works is a crucial aspect of academic work because it establishes the foundation for an inquiry and uncovers new information or gaps in studies. Thus, it is essential to develop and structure it correctly.  In this guide you will find:

• A detailed definition
• Elements of a good literary review
• How to do a literature review
• Examples of literature review template.

Read on to explore the structure and straightforward steps for assessing existing sources on your topic.  In case you are looking for a quick solution, consider giving our literature review services a try. 

What Is a Literature Review: Definition

Before delving further, let’s first define what is a literature review in research. As a researcher, you might need to objectively synthesize, explore, and evaluate existing studies conducted by others. A literature review helps you identify gaps or areas that require further investigation. It boils down to analyzing and making sense of a massive body of knowledge. It is crucial to be critical during the entire process as it is the most effective approach to engaging with texts. You need to objectively identify their strengths and weaknesses, and convey your positive or negative views.   In other words, literature reviews are about deducing specific sources and comparing relevant studies to find similarities and differences. This process may reveal new perspectives or offer a thorough outline for further developments in a specific field. It can also inform readers about the relevance and validity of existing documents to the statement of the problem . You conduct a lit review to get an overview of concepts surrounding your subject, keep up to date with trends in your field, and enhance your credibility. Besides, it offers a solid background for a research paper , thesis or dissertation .

What Is the Purpose of a Literature Review?

A literature review must highlight your overall knowledge of a research subject and help you develop an argument, mostly by responding to a specific question. It is not just a summary of what you have read.  Commonly, the purpose of a literature review is to help you:

• Understand and convey the current state of literature on your research topic .
• Find adequate documents on your subject to form your perspective.
• Create a framework for your paper based on research goals.
• Identify gaps in studies and develop novel research questions .
• Select appropriate methods by locating tried and tested techniques.

Note that keeping all these points in mind is important to get the most from an evaluation process when conducting the review.

Types of Literature Reviews

There are various types of literature reviews, each with specific expectations in terms of depth, structure, length, and scope. Here are the main ones:

• Stand-alone literature review. This type involves a comprehensive analysis of prior research related to a specific question. Here, your task is to evaluate and compare existing studies, identify trends, and recognize gaps, weaknesses, and controversies in the field.
• Literature review for a journal article. In this case, the analysis of literature focuses on providing background information for an inquiry being conducted. It is usually placed in an introduction or combined with the discussion of results.
• Literature review assignment. Students may be assigned a selective project to familiarize themselves with a theme and studies in their field. The intention could also be to identify gaps in the current knowledge base to suggest new questions, develop a theoretical framework in research , or determine a suitable methodology for future exploration. This type deals with a small part of research on a subject and stands as a complete work.
• Research paper literature review. The main objective here is to facilitate scholars in gathering, condensing, synthesizing, and examining current research on a specific issue. This is particularly beneficial to academics who are investigating a new area of study or seeking guidance on topics that have not yet been thoroughly explored.
• Thesis or dissertation literature review. This is a separate chapter placed after the Ph.D. thesis introduction and before the dissertation methodology section. It helps the author understand what has already been studied and what gaps exist in the current knowledge. By analyzing the existing research, a researcher can identify opportunities for further investigation and ensure that their study is original and significant.

How Long Should a Literature Review Be?

If the instructions for a task do not specify the required length of the literature review, there are some guidelines to consider. In general, it would be enough to have 20-25% of the total size of your work as an analysis part. Typically, the analysis section of the review should constitute around 20-25% of the total length of the work. However, several factors, such as the project purpose, intended audience, type, and scope, may affect how long a literature review is. For example, a dissertation usually requires an extensive literature evaluation section. The best assessments, however, are usually not less than 2 pages long.  If you are uncertain about the appropriate length, refer to the table below for guidance. Literature Review Length in Different Projects

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Features of a Good Literature Review

Regardless of your work’s nature, composing a good literature review is a laborious process that many students rightfully find challenging. This is because you may need to go through numerous studies and identify gaps, recognize frameworks, cite sources, and ensure coherence. Therefore, to develop a decent piece it is essential to consider the characteristics described below. The best work:

• Is more than just a list of relevant studies: you should critically examine others’ ideas and assess how they are presented.
• Considers a variety of reliable and applicable sources: a scientific literature review should demonstrate that you are familiar with relevant readings on your topic. Thus, ensure you have covered important, broad, latest, and pertinent texts. Such an approach enhances the depth of your evaluation and highlights various viewpoints.
• Demonstrates an awareness of values and theories underpinning the work: in the first place, you must understand why exactly you are conducting the evaluation. If you don’t know the purpose and function of the process, you will not write effectively.
• Relates papers to each other by comparing and contrasting them: a literature review in research moves past simple descriptions of what others have written. Rather, it entails connecting, finding differences and similarities, and interpreting concepts.
• Offers personal reactions and opinions to manuscripts: after comparing, contrasting, and critiquing others’ works, you should present your own interpretation and analysis.
• Showcases research gaps that your study will deal with and help address.
• Applies appropriate linking/transition words such as “similarly”, “however”, “also”, “contend”, “conclude”, “argue”, and “assert”: this helps you group together related notions, highlight contrasting views, and introduce others’ opinions or texts while remaining objective throughout the analysis.

What to Include in a Literature Review?

At this point, you understand the definitions, purpose, and features of a literature review. Now you need to present information effectively. Like in any other formal paper, your work must have a basic structure comprising an introduction, body, and conclusion.  But what does it look like? The layout goes beyond these sections because you must also consider how your themes and arguments will be organized.  Here is a detailed description of the three main parts of a literature review:

• Introduction Your first section should be brief, direct, and focused. Explain the main themes or topics to be analyzed, the arguments you will present, and the underlying reasons for your claims.
• Body In this section, conduct a comprehensive evaluation of the selected sources and organize them using a specific approach, such as themes or topics. Make sure to present your arguments clearly, linking them to studies that support or contradict your assessment. Remember to include viewpoints that disagree with your position to strengthen your evaluation. Cite the works of various authors you are critically analyzing, and limit the use of direct quotes. Instead, paraphrase and include references.
• Conclusion Summarize your literature review by highlighting the conclusions drawn from your analysis. You can restate gaps in knowledge, explain how your study will address them, and recommend future research needed on the topic.

Look at the example of the literature review template below to learn more.

How to Structure a Literature Review?

Once you are ready to begin writing a literature review, it is necessary to think about how you will organize information. This helps avoid the risk of your work turning into a loose sequence of summaries instead of a logical and integrated analysis.  A literature review structure should be chosen based on the style used in your body section. Here are the major approaches you can use:

• Thematic This approach involves organizing your analysis around themes, topics, or issues. It is particularly useful when focusing on a single overarching subject and enables you to highlight critical debates within sub-themes.
• Chronological Literature reviews using this format organize studies based on when they were published, typically moving from older to newer works to explore the topic's development over time. It is important to analyze sources by considering any debates and turning points that influenced the subject and offer your interpretation.
• Methodological This design focuses on the methods other researchers used. A review of literature using this layout considers the perspective from which a particular theme was examined or the procedures used to answer a specific question. It may use qualitative, quantitative, or other strategies within these two broad techniques.
• Theoretical A theoretical approach involves a systematic and critical examination of existing theories, models, and frameworks related to the research topic or question. This approach helps to establish the context, identify gaps, and provide a foundation for your own research.

How to Write a Literature Review?

If you are still wondering how to write a literature review for a research paper, thesis or dissertation, this guideline will help you get started. While you have learned about important elements such as structuring and organization, you may still need guidance on how to establish your foundation for creating your review.  The following sections provide easy-to-understand explanations on how to write a lit review. Below are 7 steps you must follow to develop a decent paper.

1. Select a Topic and Narrow It Down

As you begin reviewing literature, it is vital to get your focus correct. Depending on your field of study, the selected topic must be:

• Relevant and important Explore a crucial concern in your field so that people will be interested in your work and you will have sufficient material to base your project on.
• Interesting This is essential because learning how to write a good literature review starts with being inquisitive since you can’t investigate something that doesn’t arouse your curiosity.
• Well defined this helps you include only relevant publications to make your paper helpful.
• Narrow Your theme must be specific yet researched enough to allow for an in-depth analysis. Broad issues usually necessitate a large number of studies, which will be impossible to explore meaningfully.

2. Search for Pertinent Literature

After having selected a topic for your research literature review, you need to search for studies. As you do this research, you'll want to take note of the keywords and phrases that appear frequently in the articles. These keywords can be used to create a list of search terms that you'll use to find additional articles on your topic. To ensure that your search terms are effective, you should try to identify the most important keywords and phrases related to your topic. These might be the names of key researchers, conceptual frameworks , theories, or techniques related to your topic. Consider the headings that the documents have been tagged with and words occurring in abstracts and titles. You can then organize your phrases into blocks based on the main ideas. Once you have identified the relevant keywords for your scientific literature review, it's time to search for articles. To do this, you'll need to choose at least two credible databases to search for good articles. Popular options include:

• Google Scholar

But there may be other databases that are more appropriate for your specific topic. When searching across different databases, it's important to use a uniform search strategy. This means combining your search terms using " OR " and " AND " to create a block of related terms. You can then type this block into the basic search box or use the advanced search feature, enclosing the terms in parentheses. This makes it easier to find specific articles. For example, consider these keywords:

Since the generated results may contain irrelevant or unreliable sources, ensure that you select only dependable ones. This is a key skill to develop when conducting a literature review because it allows you to choose the best articles to support your arguments.

3. Analyze and Choose Relevant Sources

After completing your search for articles and selecting databases, it's time to review the sources and choose which ones to include in your lit review. Focus on studies that are relevant to your topic and meet any other inclusion criteria.  To determine whether an article is relevant to your project, you'll need to read it carefully and grasp the arguments presented. Take notes as you read, recording interesting facts, main points, and any thoughts you have about the article. This will help you remember which author made which arguments, your impressions of the article, and any relationships you identified between different sources. As you read, try to answer these questions:

• What is the main argument of the article?
• How does the author support their argument?
• What is the research question or objective of the study?
• What research methods were used, and were they appropriate for the research question?
• What were the main findings or results of the study?
• Were the results statistically significant, and were the conclusions supported by the data?
• Are there any limitations or weaknesses to the study that should be considered?
• Are the authors qualified to conduct this research?
• Are there any conflicts of interest or biases that may affect the study's findings?
• Is the article well-written and easy to understand?
• Are the sources cited in the article reliable and relevant to the topic?

Remember that you can only start to write your literature review after going through all your manuscripts. Therefore, creating a rough draft is essential as this gives you a general idea of the volume of available material available. While conducting a literature review, you must examine the quality of all sources critically. This typically entails using a checklist or table to evaluate aspects such as methods, results, and presentation. An example of a template to assess sources for a literature review is provided below. It contains questions and criteria that assist in locating bias, errors, or flaws. Template for Literature Evaluation

4. Group the Sources by Categories

To write a review of literature, you need to sort your sources. After reading and evaluating your articles, you should have a general idea of the main achievements, major debates, themes, trends, and outstanding issues/questions. The next step is to organize your sources into logical categories. Good research literature reviews are systematic and consistent. You may choose to arrange your sources by topic, research methodology , geographic location, or other relevant criteria. It's also helpful to use subheadings within each category to further organize your sources. As you group your sources, be sure to consider how they relate to one another and to the overall research question or topic. You may find that certain sources address multiple themes or issues. In this case you'll need to decide which category is the most appropriate for each source. Remember that the purpose of organizing your sources is to provide a clear and coherent structure for your literature review. By grouping your sources into logical categories, you make it easier for your readers to follow your arguments and understand the connections between different sources. Here is an example of how to group sources by categories.

5. Build Connection Between Your Ideas and the Literature

To complete this step of the literature review, you need to connect your research, arguments, or ideas to the texts you've gathered. Begin by using your research question to identify connections between your sources and insights into your findings. Match your key concepts with the central points in each article to establish associations between topics. Be aware that you may see differences or contradictions between readings. To ensure that you're ready to write your literature review, use your key concepts as headings in your notes to easily locate articles that address specific themes. Observe and make explicit the relationships that emerge between your arguments and the manuscripts. These connections will be useful when structuring your work and selecting the papers to include in your project.

6. Write a Literature Review

At this point, you can start a literature review because you have already synthesized relevant works in your mind and recorded the details. With that information in mind, it is time to begin composing the actual analysis and thoroughly creating each of the components of a literature review.  Initiate the process by highlighting your topic and your overall argument or view.  Just like any other academic essay , your project must be well-structured and contain an introduction, main part, and conclusion. Consider the following explanations on how to write a literature review for a dissertation, thesis, or research paper.

Literature Review Introduction

The introduction section should provide the necessary background information and clarify the purpose of your analysis.  Begin by broadly announcing the topic and providing contextual details of major concepts and terms, such as what is already known about the subject and how the field has developed. Next, provide specific and relevant information about the issue and explain why it is important or why readers should engage with your work. Finally, describe the organization, scope, and aim or highlight the key points that will be discussed. Look at the following example to see how you can write an introduction for a literature review. Literature Review Introduction Example

Lit Review Body

The body section of your literature review is where you analyze relevant studies related to your topic. It is essential to organize your analysis coherently and logically.  Identify important sub-topics and structuring them to support your arguments. Using subheadings under major themes can help to order and focus your work effectively.  While writing the body of your literature review, you should critically examine texts.  This involves recognizing gaps, points of agreement or disagreement, and key subjects.  You can structure this section chronologically, thematically, theoretically, or methodologically, depending on your research question and the nature of your sources. Remember to use reliable and accurate references to support your arguments. Consider this example: Example of a Literature Review Paper Body Section

Literature Review Conclusion

The concluding section of a literature review should show how you addressed the topic or achieved your purpose. You should then mention the major arguments you examined before identifying their implications in the broader field. Remember to recommend any applicable future research. Also, keep in mind these things when writing your literature review conclusion:

• Avoid in-text citations.
• Do not include new information.
• Highlight main ideas raised in the body paragraphs.
• Give your general view of the studies and explain your conclusions and underlying reasons.

Here is a sample literature review conclusion. Literature Review Conclusion Example

7. Proofread and Revise Your Review of Literature

Once you are done with reviewing your literature, give yourself some time off and then come back to edit it. Attend to its narrative and flow by ensuring that all parts fit together and transition smoothly from one paragraph to another. Improve any poor connections, revise to enhance clarity, or re-write sentences to eradicate construction mistakes. You can then give your scientific literature review to a colleague or friend, who is not an expert in the field, and ask their opinion about the message of your overall paper. Also, seek responses from your supervisor if possible. Use any feedback you get to better your project further. At this point, you understand how to do a lit review. Additional tips are provided below.

Literature Review Format

Besides following the aforementioned steps, you must also consider how to format a literature review. Be sure to check with your institution or target journal about style guidelines and the specific rules of your work’s layout.  Each style has instructions regarding the major sections, in-text citations, and a literature reference page.  For example, an APA paper format is based on an “author-date” approach, in which the author’s name and publication year are cited inside the document. A reference list is included on your paper’s last page. APA literature review format is dominant in the sciences, psychology, and education fields.  In contrast, an MLA format paper follows a “researcher-page number” style accompanied by works cited page, which is common in the humanities.  A Chicago style paper requires footnotes or endnotes with a bibliography section for all sources. It is mostly used in fine arts, history, and business disciplines.

Literature Review Examples

At this point, you are ready to start writing your review. Before proceeding, it is advisable to consider an example of literature review in a research paper, thesis or dissertation in your field. Thoroughly read the samples you find to get familiar with aspects such as organization, argument presentation, and referencing sources correctly. This is an effective way of learning ways of framing and structuring your work. Additionally, going through how to write a literature review example helps you understand what is expected in this task. Also, when reading these samples, pay attention to the academic language used. Look at the following free examples: Literature review example (APA 7th Edition)

Literature review for research paper example

Thesis/dissertation literature review example

Tips on Writing a Literature Review in Research

Now that you have a well-rounded idea about how to write a literature review, read the recommendation described here as they remind you of essential points. Before proceeding, remember that you should include sources that are associated with your work directly. This helps you avoid frustrating and distracting readers or making them lose sight of your purpose. Also, once you start writing your review, stick to the previously created outline and keep these tips in mind:

• Analyze Do not just list studies, rather, examine them critically to find similarities, differences, relationships, or contradictions.
• Time management Take your time to select a topic, gather literature, evaluate, read, and write. The last part should take about half of your time, while the remainder is for the other tasks.
• Revise Anticipate revising countless times before delivering a final version.
• Presentation A literature review in a research paper, thesis or dissertation must be specific and provide concrete examples. For example, rather than “this” use “this result”. First-person references should be avoided because they signal unsupported arguments. Everything written should have a reason. Also, use short paragraphs as they are easier to read. Additionally, structure your work with headings, subheadings, and subsections to make it flow.
• Paraphrase Avoid relying too much on quoting directly from sources or one researcher. Rather, paraphrase and compare authors between themselves and with your ideas.
• References Give credit to every outside idea or language by citing their work in your paper.

Literature Review Checklist

Now that you are through with composing your literature review, it is essential to be sure that your work is ready for delivery or publication. Therefore, you must take your time and reflect on the following questions to ensure that every section is covered thoroughly. Consider this final checklist:

Final Thoughts on Writing a Scientific Literature Review

We have provided you with all the necessary information on how to write a review of literature. Follow our step-by-step guide to identify the right keywords, evaluate sources, and select credible and relevant articles. Make sure to structure your writing clearly and logically using the key components of a literature review that we have outlined for you.  To help you further, we have included examples of literature reviews for you to check. With these simplified requirements, you are ready to start practicing and creating your own literature reviews. Remember, practice is essential to mastering this type of writing, so keep it up!

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• checkbox I stated the reason for conducting my project and outlined its scope.
• checkbox I chose relevant and credible studies.
• checkbox I have identified recent trends.
• checkbox I have logically presented a review of literature in my research paper or dissertation.
• checkbox I organized my information based on themes/issues/methods/theories.
• checkbox I have located gaps in research and literature.
• checkbox I displayed how details supporting a topic relate to its significance.
• checkbox I wrote my literature review critically.
• checkbox I have demonstrated instances when findings contradicted each other or were inconclusive.
• checkbox I explored designs, theories, questions, models, and hypotheses.
• checkbox I highlighted each source’s importance to my theme.
• checkbox I have included an introduction, body, and conclusion.
• checkbox I have checked for grammatical issues.

Read more: Literature Review Outline

Crohn’s disease, ulcerative colitis, adolescents, young adults, and management. The search term block would be “(Crohn’s disease OR ulcerative colitis) AND (young adults OR adolescent) AND management”.

The concentration of carbon emissions has been increasing throughout the years. The amount was 290 ppm before the industrial revolution but rose to 450 ppm afterward (Block, 2019, Wbeltz, 2020). These changes will affect the global climate significantly by influencing mean temperatures and precipitation levels. In turn, this will put pressure on global agricultural production and affect the growth speed, crop quality, and yield of staple foods like wheat (Wbeltz, 2020). Since over 90% of people worldwide depend on this crop, it must survive any climate changes. Thus, the purpose of this review is to evaluate how carbon emissions will affect global wheat production and identify any mitigation measures. The paper will explore wheat growth, yield, and quality in the face of elevated carbon levels.

Various studies show that elevated carbon emissions result in increased crop growth. Adams (2018) attributes this to improved photosynthesis in leaves when exposed to high carbon levels in the air. Other studies argue that carbon enriches crops, accelerates and amplifies their productivity, and causes improved growth (Hog, 2020). In an experimental study, Li (2019) compared crop growth under high carbon conditions and found that a 500 ppm level enhances growth by nearly 8%. Nevertheless, high carbon levels also result in other effects such as high temperatures (Daley, 2019). In turn, this leads to short growth periods or cycles. Thus, an increase in temperature while accelerating the time for growth adversely affects crop quality (Adams, 2020).

The review aimed to explore the effect of elevated carbon levels on global wheat production. Assessments of effects on the crop’s growth, yield, and quality were conducted to understand how changes in climate due to increasing carbon emissions will affect global agriculture. Findings demonstrate a definite impact of these changes on the aforementioned aspects. In particular, elevated carbon levels lead to enhanced growth, shorter growth cycle, and low and poor quality yields. It is suggested that future studies should further explore the role of other factors such as soil health and fertilizer use in explaining these effects because modern agricultural techniques are considered to harm soil quality.

FAQ About Literature Reviews

1. what is a literature review in a research paper.

The literature review of a research paper is a type of academic essay that analyzes and evaluates previous or existing studies on a topic. It aims to survey readings, synthesize, and digest the obtained information. It also critically explores the data by identifying gaps in knowledge, demonstrating limitations in manuscripts, examining contradictions, and determining areas for additional research. The final piece is presented logically.

2. Where does a literature review go in a research paper?

A literature review generally comes after an introduction and before the methodology chapter of dissertations. Here, it is used to analyze relevant scholarship about a topic, ground your research paper in a specific field, and inform your data collection methods and analysis procedures.

3. How to start a literature review?

Start a literature review by describing the background of what you will analyze in your body paragraphs. There is no need to be comprehensive here. Rather, show that you clearly understand your paper’s scope. In particular, begin by conveying the established ideas and knowledge on the subject being explored to your audience.

4. What is the difference between a literature review and an annotated bibliography?

The main difference between the two is that literature reviews focus on providing an overview and analysis of existing research on a particular theme. They aim to identify the strengths and weaknesses of arguments and draw conclusions. In contrast, the purpose of an annotated bibliography is to collect sources for a specific project and offer summaries of what they are about.

5. What is the importance of a literature review?

A literature review is important because:

• It establishes a rapport with your readers They will trust you because you have examined and analyzed facts appropriately.
• Helps researchers deliver original work The entire process of conducting the assessment assists you to evade repeating something done by someone else.
• It improves your research focus Synthesizing and analyzing studies can guide and shape your investigation in new directions by providing novel insights and views on a theme.