This document provides guidance on writing the introduction section of a case study research paper. It advises that the introduction should describe both the research problem and why the specific case is being used to address the problem. A good introduction should answer four questions: what was being studied, why the topic is important, what was previously known about the topic, and how the study will advance understanding. The introduction should include a thesis statement and research questions. Sample introductory paragraphs are provided and analyzed to identify the key elements that should be included - a hook, background on previous studies, the gap in knowledge, the aim of the study, and specific research questions. Outlines for writing the introduction and background are recommended.