For an example of literature review, look at the first section of this peer reviewed article:
Woodland, M. H. (2016). After-School Programs. Urban Education, 51(7), 770.
Before you start your research paper you need to find out what other research has been done on the topic. A literature review will include the works you consulted in order to understand and investigate your research problem. A good literature review is not simply a summary of other research articles. The sources listed should be organized logically with the sources dealing with the same aspects of the topic grouped together. You should also evaluate the sources, show the relationships among them and explain why they are important (or not) for your own research.
Who would have an interest in my topic and possibly study it or monitor it?
Where would they publish the studies or reports that they generate?
If you find an article that looks really good, you can use it to find other related research. How?
1. Pearl growing strategy
Citation pearl growing is the act of using one relevant source, or citation, to find more relevant sources on a topic. By reviewing the relevant source, you can identify other keywords, descriptors, citations (that is who published on that particular topic *before* it was published), and themes to use in a subsequent search.
2. "Cited By" strategy
Some databases of scholarly articles will include a "cited by" feature, to let you know who referenced that particular article *after* it was published. Google Scholar does so as well.