Literature review :

Define and explain the problem
Summarize previous investigations to inform readers of the current state of knowledge about this problem
Identify gaps in the literature:
        contradictions
        inconsistencies
        relationships, etc.
(Describe the “gap” or “need” defined in the current literature and how it leads to the creation of the topic and problem statement for the study.)
Highlight main issues and controversies
Suggest next steps in solving the problem
Refer to minimum four (4) references published within the last 5 years
There should be a minimum of three pages.