The purpose of Chapter 2 is provide the reader with a comprehensive review of the literature related to the problem under investigation. The review of related literature should greatly expand upon the introduction and background information presented in Chapter 1. This chapter may contain theories and models relevant to the problem, a historical overview of the problem, current trends related to the problem, and significant research data published about the problem. The first section of Chapter 2 generally indicates how the chapter is organized and explains the subsections that comprise the chapter.