Here are a couple of examples: The current trend in treatment for congestive heart failure combines surgery and medicine.
For professionals, they are useful reports that keep them up to date with what is current in the field.
For scholars, the depth and breadth of the literature review emphasizes the credibility of the writer in his or her field.
If your assignment is not very specific, seek clarification from your instructor: Look for other literature reviews in your area of interest or in the discipline and read them to get a sense of the types of themes you might want to look for in your own research or ways to organize your final review.
You can simply put the word “review” in your search engine along with your other topic terms to find articles of this type on the Internet or in an electronic database.