A literature review is am account of what has been published on a topic by credible scholars and researchers. The purpose of a literature review is to summarize what knowledge and ideas have been established on a topic while also offering analysis on that prior research.
A Literature Review MUST:
1. Be organized and directly relate to the thesis, topic, or research question being developed
2. Synthesize results into a summary of what is and is not known
3. Identify opportunities for new research to fill in gaps of knowledge
4. Include sources that cover multiple perspectives