Identifies gaps in current knowledge. Literature review sources can be divided into three categories as illustrated in table below: Your literature review should integrate a wide range of sources such as: Textbooks remain as the most important source to find models and theories related to the research area.
Avoids reinventing the wheel – i.e. it saves you wasting time researching something that’s already been done. A literature review usually takes the form of a critical discussion that shows insight into the theories being discussed in publications with a clear link to the purpose of your question or research.
A literature review should not be a mere recounting of all the available information. existing on the topic. Instead, organize the literature review into sections that present themes or identify trends, including relevant theory. In other words, when reviewing the literature, “not only do you need to engage with a body of literature, you also need to be able to compare, contrast, synthesize, and make arguments with that literature in ways that indicate a readiness to contribute to the literature itself” (O’Leary, 2010, p.81). It’s usually a bad sign to see every paragraph beginning with the name of a researcher. A literature review does the following.

A literature review is a piece of discursive prose, not a list describing or summarizing one piece of literature after another. So let’s think about surveying, synthesising, critically analysing and presenting in more detail. The first thing we should do is to give a definition of literature review. If you are doing a literature review for your graduate paper, it is assumed that in the work itself you will apply your own methods and make your own conclusions. While a summary of what you have read is contained within the literature review, it goes well beyond merely summarizing studies. Remember, a literature review can be termed as discursive prose, not a list summarizing several pieces of literature. The structure of the literature review depends on the aims and purpose of your work. A literature review provides a reader with a comprehensive look at previous discussions prior to the one the reviewer will be making in his/her own research paper, thesis, or dissertation. It should be a critical and analytical summary of the selected literature that guides the readers through the central theme of … In short, a literature review shows readers where the reviewer is entering the academic conversation on a particular topic in the context of existing scholarship. A literature review is not an annotated bibliography in which you summarize briefly each article that you have reviewed. Allows you … Your task isn't to list all published material; it's to synthesize and examine it in line with the guiding concept of your research question or thesis.

The first step of any research project is to review the field. Organize your review into segments that present themes or pinpoint trends, including pertinent theory. It is a short critical analysis of “literature” (researches, articles, books, trustworthy opinions etc.)