I'd like to thank all the good people at Sybex who contributed to this book, in particular Agatha Kim, whose encouragement made this book possible in the first place and whose thoughtful guidance was helpful during the writing process. I am also indebted to Denise Lincoln, the development editor, whose many valuable suggestions contributed to this book's readability and cohesion. My gratitude also goes to Judy Flynn, the copy editor, who via a very close, line-by-line read, improved this book in many ways; she is truly an exceptional copy editor. The technical editor, Russ Mullen, checked the book for accuracy and ensured that all the code examples work without any errors. Finally, thanks to capable Rachel Gigliotti, production editor, the book went smoothly through its final stages—author review and production.