Video by libnscu (NC State University Libraries) on YouTube - Creative Commons 3.0 BY-NC-SA US license.
A literature review summarizes existing scholarly research on a topic from peer-reviewed articles, books, dissertations, and other sources. The reviewer searches for important research in a particular area of study, and then recaps their key findings in the article. A literature review doesn’t just describe what academic sources say on the topic. Rather, the reviewer discusses trends, identifies gaps or inconsistencies in the research, and may draw conclusions about a subject based on the research presented in the literature.