A literature review is essential for graduate essays, dissertations, theses, and research projects. It aims to explore existing knowledge on your topic by analysing scholarly articles and relevant sources. This process demonstrates your grasp of the subject.
After reviewing the literature, you should identify key themes, compare perspectives, and spot gaps in existing research. This sets the context for your work, emphasising its significance in the field.
Booth et al. (2016), note that literature reviews extend beyond theses and dissertations, also appearing in journals, reports, and policy development.
At postgraduate/thesis level you will normally do either a narrative or systematic literature review, depending on your topic.