A good literature review plays a vital role in your dissertation. It gives you and your reader a sufficient amount of background information on the subject and helps your research problem in many ways. Before you begin your literature review, you must consult your instructor on what kind of literature review will support your dissertation. Narrow down on sources that are closest to your topic and research problem, choose current sources as far as possible, take a variety of sources – books, articles, journals, websites, etc. and make sure to evaluate your sources. If you conduct a detailed literature review relevant to your topic, you will earn good rewards in your grading process.