This document provides guidance on conducting a literature review for an undergraduate dissertation. It discusses the importance of understanding theories related to the research topic and the different types of theories. The purpose of a literature review is outlined as introducing the research area, summarizing previous studies, identifying gaps, and presenting research questions. The three stages of a literature search are described as an initial search, reviewing abstracts to find more sources, and determining which sources require in-depth reading. Effective writing of the literature review includes using mind maps, developing a clear argument and narrative, and critically analyzing sources rather than simply describing them.