This question was recently asked in the comments thread on another post. Like many simple questions, the answer is a bit complicated. The short answer is that, as an academic, you never stop reviewing the literature because you need to be aware of the latest developments in your field and what your competitors are doing. I don't think this sufficiently answers the question though.
Introduction to literature reviews
Home - How do I Write a Literature Review? - LibGuides at Eastern University
Many things go well together in this world, like fish and chips or the birds and the bees figuratively speaking. However, one felicitous pairing that might not immediately jump to mind are the literature review and discussion sections of your dissertation. This is because a dissertation is more than a set of discrete essays; rather, each part should be written in a way that contributes to your dissertation as a greater whole. The main purpose of your literature review is to contextualise your research by outlining previous studies conducted in the field. Referring back to the literature review in your discussion section therefore helps set the background against which your results should be interpreted, making it easier to explain their relevance to your hypothesis. One way to do this is by comparing your results to those obtained in similar studies. For example, you might want to discuss whether your results agree or disagree with those of other researchers.
How do I Write a Literature Review?: Home
PLoS Comput Biol 9 7 : e Editor: Philip E. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The funders had no role in the preparation of the manuscript. Competing interests: The author has declared that no competing interests exist.
Knowing the job that a literature review does means you can be more targeted and systematic in your literature searching. New discoveries don't materialise out of nowhere; they build upon the findings of previous experiments and investigations. A literature review shows how the investigation you are conducting fits with what has gone before and puts it into context. If you are doing a thesis, dissertation, or a long report it is likely that you will need to include a literature review.