This document provides guidance on writing a review of related literature for a research study. It defines a literature review as evaluating and critiquing what other researchers have done in relation to the problem being studied. The document outlines 10 simple rules for writing a literature review, including defining the topic, searching literature sources, taking notes, choosing a structure, and getting feedback. It also describes different types of literature reviews and the functions of a review. A sample literature review is provided on the topic of reaching the unreached in Filipino education. Formatted references in APA style are given, as well as identification questions and a performance task essay question to assess understanding of the literature review process.