In this chapter we present a summary of the main contents of this book. According to the Mayfield Handbook of Technical & Scientific Writing (Perelman, Barrett, & Paradis, 1996, 2001), an abstract is “a brief summarizing statement. . . read by parties who are trying to decide whether or not to read the main document.” However, since the main conclusions of each chapter are also included, this chapter can also be read as a summary, “which, unlike an abstract, is a document in miniature that may be read in place of the longer document” (same source). For pictures, tables, and other illustrative material, we refer to the various chapters of this book.