The concept of a literature review is very much a plural rather than a singular one as there are many literatures a researcher must examine to produce a coherent literature review ... the researcher is joining an ongoing debate in some shape or form. The originality of an idea, an approach, or a theoretical reinterpretation adds to existing literature. Read more
A literature review synthesizes current knowledge pertaining to the research question. This synthesis is the foundation that , through the use of logical argumentation, allows the researcher to build a convincing thesis case. Read more
Different types of literature review: selected review for a short paper vs. comprehensive review for a dissertation/thesis.