Published books represent more than the words that authors write, for they typically are products of the collective efforts of many people, and this one is no exception. We sincerely appreciate the enthusiastic encouragement and guidance that we received throughout the project from Vice President & Publisher Tim Moore, Acquisitions Editor Jennifer Simon, and Project Editor Jovana San Nicolas-Shirley of Pearson Education. We also deeply appreciate the support provided by the Society for Human Resource Management (SHRM) for the development of the software (accessible at www.shrm.org/publications/books) that accompanies the book, and our thanks go to the software developers, John Jarrard and Toan Ong, for the high-quality software that they developed. Of course, any omissions or errors are the responsibility of the authors alone.