Reveal to your reader why you chose to research this topic, problem, or issue, and just why research that is such needed. Explain any “gaps” in the research that is current this topic, and explain how your research plays a role in closing that gap.
Whilst not always required, the literature review may be an important part of your introduction. An overview is provided by it of relevant research in your discipline. Its goal is to provide a context that is scholarly your research question, and explain how your own personal research fits into that context. A literature review just isn’t merely a summary of the sources you’ve found for your paper—it should synthesize the data gathered from those sources in order to still demonstrate that work needs to be done.