Literature Review vs. Research Paper vs. Review Article: What's the Difference?
June 17
If you have ever stared at an assignment brief wondering whether you were asked for a literature review, a research paper, a review paper or a review article — and whether a "review of literature" is yet another thing entirely — you are in very good company. These terms overlap, they are used loosely across different universities and journals, and the same word can mean slightly different things in different fields.
This guide untangles all of them in plain English. We will define each document, show you the one question that separates them instantly, and then walk through every specific comparison students search for, with examples and a decision flowchart you can save.
Comparison table for Research Paper vs Review Article vs Literature Review
What is a research paper?
A research paper (also called an original or empirical paper) reports a study that the authors carried out themselves. They collected raw data — through an experiment, survey, interview or observation — analysed it, and drew conclusions that add something new to the field. That makes a research paper a primary source: it is the first published account of that particular research.
Most research papers follow the IMRaD structure — Introduction, Methods, Results and Discussion — so that other researchers can judge and even reproduce the work. Tellingly, a research paper almost always contains a short literature review near the start, which is exactly where a lot of the confusion begins.
What is a review paper / review article?
First, clear up a frequent worry: "review paper" and "review article" are the same thing. Different journals and supervisors simply prefer different labels. A review article is a published, stand-alone journal article that surveys the current state of knowledge on a topic by pulling together many existing studies, comparing them, and pointing out trends, debates and gaps.
A review article does not generate any new experimental data, which makes it a secondary source. Its value is in the synthesis: a good review saves other researchers months of reading by mapping a whole field in one place. Review articles come in several flavours — narrative reviews, scoping reviews, and the highly rigorous systematic review and meta-analysis — which we cover further down.
What is a literature review?
A literature review is an organised, critical summary of what has already been published on a topic. Crucially, it can appear in two forms, and mixing them up is the single biggest cause of confusion:
As a section — the most common form. Inside a research paper, thesis, dissertation or research proposal, the literature review sets the scene, shows you know the field, and justifies your study by exposing a gap it will fill.
As a stand-alone document — a longer, self-contained review submitted as a coursework assignment or published as an article. In this second form, a literature review is essentially a type of review article.
Either way, the literature review only describes, evaluates and synthesises other people's work. It does not add new findings of its own. Learning to do this well — and to find a research gap — is a core academic skill; our step-by-step walkthrough on how to write a literature review takes you through it.
Is a "review of literature" different from a "literature review"?
No. "Review of literature" and "literature review" are two phrasings of the exact same task — just with the words in a different order. You will see "review of literature" more often in older texts and in some Indian and South-Asian university handbooks, while "literature review" is the more common phrasing internationally today. There is no difference in meaning, scope or method.
Don't overthink the wording
If your assignment says "review of literature", "review of related literature" or "literature review", treat them as identical instructions. Focus on the job — summarise and synthesise existing sources — not the label.
Side-by-Side Comparison Table
Every difference, explained one by one
Here are the specific comparisons people search for most. Each is short, because once you grasp the primary vs secondary source idea, every pairing follows the same logic.
Difference between a literature review and a research paper
This is the comparison that trips up the most students because a research paper contains a literature review. The difference is one of scope and purpose: the research paper is the whole house and makes a brand-new argument backed by your own data; the literature review is one room inside it that maps prior work and justifies why your study is needed. A literature review on its own contributes no new findings.
Difference between a review paper and a research paper
This comes down to primary vs secondary. A research paper is primary — the authors collected and analysed their own data. A review paper is secondary — the authors gathered and interpreted data from many existing studies to describe the bigger picture, without running new experiments.
Difference between a review paper and a literature review
These two overlap the most, and in their stand-alone form they are nearly the same thing. The practical difference is context and independence: a review paper is always a complete, publishable article; a literature review is most often a component of a larger work (a thesis chapter or a paper's opening section). Put simply — every published review paper is a kind of literature review, but not every literature review is a published review paper.
Difference between a review article and a literature review
"Review article" and "review paper" are synonyms, so this is the same comparison as above. A review article is the stand-alone, published version; a literature review is the broader idea that also includes the review section embedded in a research paper or dissertation. When a literature review is published on its own, it is a review article.
Literature review vs. review of literature
No difference at all — see the section above. They are the same task under two names.
The one-question shortcut
Ask: "Did the author run their own study and report new data?" If yes, it's a research paper. If no, it's a review — and whether you call it a review article, review paper, literature review or review of literature depends only on whether it stands alone or sits inside a larger work.
Which one should you write?
If you are deciding what to produce for an assignment or a publication, follow this flow. It mirrors the logic above: start with whether you have your own data, then decide how independent and how rigorous the piece needs to be.
The types of literature reviews (and reviews)
"Review" is an umbrella term. Knowing the main types helps you pick the right approach and read assignment briefs correctly. The most common are:
Narrative (traditional) review — a flexible, thematic overview of a topic. Most coursework literature reviews are narrative reviews.
Systematic review — follows a strict, pre-registered, reproducible method to answer one focused question, minimising bias. The gold standard in health and social sciences.
Meta-analysis — statistically combines the numerical results of many studies. Often built on top of a systematic review; see systematic review vs meta-analysis.
Scoping review — maps how much research exists on a broad area and where the gaps are, without the narrow question of a systematic review.
Scoping review — synthesise diverse evidence, or trace how an idea evolved over time.
For the full breakdown with templates, see our guide to the types of literature reviews.
Key takeaways
- Research paper = your own new study (primary source).
- Review paper = review article = a stand-alone synthesis of others' work (secondary source).
- Literature review = a synthesis that is usually a section of a paper/thesis, or a stand-alone review.
- "Review of literature" = "literature review" – identical meaning.
- The fastest test of any document: does it report new, original data?