This chapter opens by considering if this book will be relevant for your research. Next, I provide an example of the documents that I engaged with on one particular day. This supports the conclusion that documents are everywhere in developed societies and can therefore help us to understand a wide range of phenomena. Following this, I explain the need for this book and the way in which it varies from other books that are available. Finally, the chapter ends with a description of the structure of the book and provides a detailed outline of the remaining eight chapters.