This document provides guidance on writing the introduction section of a literature review. The introduction should briefly introduce the topic, key concepts, and scope/organization of the review. It typically covers 2-3 pages. The document then discusses different styles for organizing the subsections of the literature review, including discussing studies individually or grouping them, and organizing by findings or scoring studies. It provides tips for writing the review such as outlining first, writing in sections, and finding patterns in the literature to synthesize it. The goal is for the rationale of the proposed work to be clear by the end of the review.