We would like to thank the many folks at Bloomsbury for their help in the preparation of this book. Our special thanks go to Gurdeep Mattu, Andrew Wardell, and Balaji Kasirajan. In addition, we would like to thank our colleague Wynne Wong, who read portions of the first-edition manuscript and offered feedback and suggestions. To be sure, we do not hold her or anyone else responsible for any omissions or errors contained in this book. We also thank the anonymous reviewers who provided ideas during the planning stage of the second edition. Finally, we would like to thank our families and friends who put up with our hectic work and writing schedules. In a world that doesn't always appreciate academic efforts, it is comforting to have those around us who understand why we academics do what we do.