How to Write a Literature Review for Dissertation Writing

Writing a literature review for a dissertation is not just a matter of finding a pile of academic papers and summarising what each author says.

That is one of the most common mistakes students make.

A good literature review shows that you understand the research already carried out in your field. More importantly, it shows that you can compare different ideas, recognise disagreements, assess the strengths and weaknesses of previous studies, and identify where your own research fits.

I find it helpful to think of the literature review as a conversation. You are not simply reporting what other researchers have said. You are joining that conversation and explaining why your dissertation has something worthwhile to contribute.

What Is a Literature Review?

A literature review is a critical discussion of published research relating to your dissertation topic or research question.

It normally covers academic books, journal articles, research reports and other credible scholarly sources. Depending on your subject, you may also need to examine historical documents, theoretical texts, primary sources or other specialist material.

The important word here is critical.

A literature review should not read like this:

Smith says X.
Jones says Y.
Brown says Z.

Instead, you should show how these ideas relate to one another.

For example:

Smith argues that Victorian novels portray industrialisation mainly as a source of social disruption. Jones reaches a similar conclusion but places greater emphasis on changing class relationships. Brown takes a different position, suggesting that these representations also reveal changing attitudes towards gender and domestic life.

Now the reader can see a debate developing.

That is what you want your dissertation literature review to do.

Why Is the Literature Review Important?

Your literature review gives your dissertation its academic context.

Without it, a reader may struggle to understand why your research question matters or how your study relates to existing scholarship.

A well-written review can help you:

• explain the background to your research;

• introduce important theories and concepts;

• show what other researchers have discovered;

• identify disagreements within the field;

• point out weaknesses or limitations in existing research;

• identify an area that needs further investigation;

• establish the reasoning behind your own research.

This is particularly important in humanities subjects, where your dissertation often develops through an existing body of critical debate.

For example, you might discover that scholars have extensively discussed gender in Shakespeare’s plays but have paid considerably less attention to the relationship between gender and social class. That observation could become an important starting point for your own research.

Step 1: Begin With Your Research Question

Before searching for dozens of articles, go back to your research question.

Your question should guide your reading.

Suppose your dissertation asks:

How does migration influence representations of identity in contemporary British fiction?

A broad search for “British fiction” would give you far more material than you could realistically use.

Instead, break the question into smaller concepts:

• migration;

• identity;

• British fiction;

• representation;

• diaspora;

• belonging;

• cultural identity;

• nationality.

You can then combine these terms when searching academic databases.

For example:

migration AND British fiction AND identity

or:

diaspora AND contemporary literature AND belonging

Try different combinations rather than relying on one search phrase.

Google Scholar can be useful for discovering relevant publications and following citation trails, but your university library databases should also play an important role. Depending on your discipline, useful databases may include JSTOR, MLA International Bibliography, Scopus, Web of Science, ProQuest and EBSCO.

Do not assume that the first page of search results represents the best research available.

Step 2: Search for Different Types of Scholarship

Once you have identified your main concepts, start looking for different kinds of sources.

You may need:

• foundational theories;

• influential books or articles;

• recent research;

• studies using different methodologies;

• research that challenges the dominant view;

• work dealing specifically with your chosen texts, authors, period or case study.

This prevents your review from becoming one-sided.

It is also worth paying attention to the publication date. Recent scholarship can show you where the field is heading, while older influential works may provide the theoretical foundation for the discussion.

You don’t need to replace an important 20-year-old theory simply because it is old. The question is whether it remains relevant.

Step 3: Decide Which Sources Are Actually Useful

Finding a paper does not automatically mean you should include it.

Before adding a source to your literature review, ask yourself a few straightforward questions.

Who wrote it?

Look at the author’s academic background and research area.

Where was it published?

A peer-reviewed journal or reputable academic publisher will generally carry more weight than an anonymous website.

What is the main argument?

If you cannot explain the argument in a sentence or two, you probably need to read the source more carefully.

What evidence does the author use?

Consider whether the evidence genuinely supports the conclusions.

What are the limitations?

No research is perfect. Look for gaps in methodology, scope, evidence or interpretation.

How relevant is it to my dissertation?

A fascinating article can still be irrelevant to your research question.

This process helps you avoid one of the biggest problems with literature reviews: including sources simply because they sound academic.

Step 4: Take Notes That Help You Compare Sources

Your notes can make or break the writing process.

If you simply write pages of notes under individual authors’ names, you may eventually end up with a literature review that follows exactly the same source-by-source structure.

Instead, create a simple research table.

You don’t need sophisticated software to do this. A spreadsheet works perfectly well.

Reference-management tools such as Zotero can also help you organise sources and keep track of citations while you write.

The real advantage of a research matrix is that patterns become easier to see.

You may suddenly notice that five authors agree on one issue while three others strongly disagree. That disagreement could become one of the main sections of your literature review.

Step 5: Look for Themes and Debates

Once you have read enough material, stop and look at the bigger picture.

What ideas keep appearing?

Are researchers divided into different schools of thought?

Has the dominant interpretation changed over time?

Are there important questions that researchers have largely ignored?

For example, suppose you are researching gender in early modern drama.

Your reading might reveal three broad approaches:

1. scholars who focus on historical ideas about gender;

2. scholars who use theories of gender performance;

3. scholars who examine the relationship between gender, class and political power.

Those approaches could form the basis of your chapter structure.

This is usually much more effective than creating separate sections for every author.

Why Source-by-Source Writing Often Fails

Consider this structure:

Smith’s Research

Summary of Smith’s argument.

Jones’s Research

Summary of Jones’s argument.

Brown’s Research

Summary of Brown’s argument.

There is nothing inherently wrong with mentioning each researcher. The problem is that this structure makes it easy to turn the literature review into an annotated bibliography.

A thematic structure gives you more opportunity to analyse relationships between sources.

For example:

Historical Approaches to Gender

Discuss several researchers together and compare their interpretations.

Gender as Performance

Introduce another group of scholars and explain how their approach differs.

Class and Gender

Show how newer research complicates the earlier interpretations.

Now the reader can see how the academic debate has developed.

Step 6: Identify the Research Gap

The research gap is one of the most important parts of your literature review.

However, you do not need to claim that nobody has ever studied your topic.

That is rarely true, especially in established academic fields.

A research gap might involve:

• a topic that has received limited attention;

• a particular group, text or period that has been overlooked;

• conflicting findings between researchers;

• a limitation in an existing methodology;

• an underused theoretical approach;

• an issue that previous studies have mentioned but not explored in depth;

• two areas of research that have rarely been considered together.

Imagine that dozens of researchers have studied migration and contemporary British fiction.

You might discover, however, that most studies concentrate on national identity while relatively little attention has been paid to disability and migration together.

That does not mean there is no research on migration.

It means there is a more specific question that existing research has not adequately answered.

That is a much stronger basis for a dissertation.

Step 7: Plan Your Literature Review Structure

There is no single structure that every dissertation should follow.

Your subject, research question and university guidelines should determine the final organisation.

However, a useful structure might look like this:

Introduction

Explain what the review covers, why the literature is relevant and how you have organised the chapter.

Key Concepts and Theories

Define important terms and introduce the theoretical ideas that underpin your research.

Major Theme or Debate One

Discuss the first major area of scholarship, comparing relevant researchers.

Major Theme or Debate Two

Move to another significant debate or approach.

Major Theme or Debate Three

Continue towards the scholarship most directly connected to your research question.

Research Gap

Explain what existing research has not adequately addressed.

Conclusion

Bring the discussion together and show how the literature leads towards your own research.

You can also use a chronological structure when the development of ideas over time is important. In some humanities dissertations, for instance, tracing how a particular critical interpretation developed may make more sense than organising everything thematically.

The structure should serve your argument rather than the other way around.

Step 8: Write Critically

Being critical does not mean attacking other researchers.

Academic criticism is about examining arguments carefully and explaining their strengths, weaknesses and implications.

Compare these two sentences:

Brown’s argument is wrong because the author ignores gender.

with:

Brown provides a useful account of class representation, although the limited attention given to gender leaves part of the issue unexplored.

The second version is more measured and more useful academically.

Useful phrases include:

• “This suggests that…”

• “However, this interpretation overlooks…”

• “In contrast, Jones argues…”

• “A limitation of this approach is…”

• “Taken together, these studies indicate…”

• “This perspective becomes more complicated when…”

• “Although X provides useful evidence, it does not fully address…”

You are not trying to prove that one scholar is “right” and everyone else is “wrong”.

You are showing that you understand the debate well enough to evaluate it.

Step 9: Keep Bringing the Discussion Back to Your Research

This is one of the most important things you can do.

After writing a section, ask yourself:

Why does this matter to my dissertation?

Suppose your research examines representations of memory in post-war novels.

You might spend several paragraphs discussing different theories of collective memory. That’s useful, but the reader also needs to understand what those theories mean for your particular project.

Perhaps existing approaches focus heavily on collective or national memory, while your research examines fragmented personal experiences of memory.

That observation creates a clear connection between the literature and your dissertation.

A strong literature review gradually moves from:

the wider field → major debates → specific problem → research gap → your research

When that progression is clear, the chapter feels purposeful rather than like a collection of reading notes.

A Simple Example of Synthesis

Imagine three researchers studying migration in contemporary fiction.

Smith argues that migration is primarily represented through displacement.

Ahmed places greater emphasis on belonging and community.

Jones argues that both approaches need to account for digital communities and transnational identities.

A weak literature review might devote one paragraph to each researcher.

A stronger version would bring them together:

Existing scholarship has gradually moved from viewing migration mainly as an experience of physical displacement towards broader questions of belonging and transnational identity. Smith’s emphasis on geographical disruption provides an important starting point, while Ahmed expands the discussion by considering social and cultural attachment. Jones complicates both approaches by questioning whether physical location remains sufficient for understanding identity in an increasingly connected digital environment.

Notice what has happened here.

The paragraph is not simply telling the reader what three people wrote. It is explaining how their ideas relate and how the debate has developed.

That is synthesis.

Common Mistakes to Avoid

Turning the chapter into a summary

If most of your paragraphs simply tell the reader what individual authors said, you probably need more comparison and analysis.

Trying to include everything you have read

You are not expected to mention every article you found.

Choose sources because they contribute something meaningful to your research question.

Using only recent sources

Current research matters, but foundational scholarship can be equally important. Use older work when it provides an essential theoretical or historical foundation.

Using only old sources

The opposite problem can be just as serious. Make sure you understand recent developments in your field and know whether newer researchers have challenged earlier assumptions.

Claiming that “no research exists”

Be careful with statements like this.

Unless you have conducted an exceptionally comprehensive search, it is safer to explain that an area has received limited attention or remains underexplored.

Adding long quotations everywhere

A literature review should demonstrate your understanding of research, not simply reproduce it.

Use direct quotations when the exact wording matters. Otherwise, paraphrase accurately and spend your words analysing the argument.

Forgetting the research question

A literature review can become interesting and well researched while still failing to support the dissertation.

Keep checking that each major section has a reason for being there.

How Long Should a Literature Review Be?

There is no universal word count.

The appropriate length depends on your university, degree level, subject, research question and the overall length of your dissertation.

Some undergraduate dissertations may devote only a few thousand words to also be useful when you need an additional perspective on research direction, chapter chapter and check that you can answer “yes the literature review, while a doctoral thesis may require a much more extensive treatment.

Your dissertation handbook and supervisor’s guidance should always take priority over generic recommendations you find online.

Instead of asking, “How many words should my literature review be?”, ask:

Have I covered enough relevant scholarship to establish the context and justify my research?

That is a much more useful measure.

How to Improve Your Literature Review Before Submission

Once you have finished the first draft, don’t immediately start correcting commas and spelling mistakes.

Read the chapter again specifically for its argument.

Ask yourself:

• Is the purpose of the review clear from the beginning?

• Have I used credible academic sources?

• Have I included both foundational and relevant recent research?

• Do I compare scholars rather than discussing them separately?

• Have I identified genuine disagreements or limitations?

• Is my research gap specific?

• Does the literature actually lead towards my research question?

• Are my claims supported by appropriate citations?

• Does the conclusion prepare the reader for the next part of the dissertation?

• Is the reference list complete and consistent?

It can also help to ask your supervisor or an academic writing adviser to look at the structure before spending hours polishing individual sentences.

For students working in humanities subjects, specialist humanities dissertation help can also be useful when you need an additional perspective on research direction, chapter structure or academic presentation.

Final Checklist

Before submitting your literature review, take a final look at the chapter and check that you can answer “yes” to these questions:

• Have I clearly explained the scope of my review?

• Did I search more than one relevant academic database?

• Have I included important foundational research?

• Have I considered recent developments in the field?

• Are my sources credible and relevant?

• Have I organised the chapter around themes, concepts or debates?

• Do I compare and connect researchers?

• Have I moved beyond simple description?

• Is my research gap clear and defensible?

• Have I connected the gap to my own research question?

• Are my citations accurate?

• Does the chapter have a logical progression?

A strong literature review should ultimately answer three straightforward questions:

What do researchers already know?

Where are the disagreements, limitations or unanswered questions?

Why does my dissertation need to investigate the issue further?