We’d like to thank all the hardworking people at Apress, whose effort and support are absolutely critical when it comes to delivering a book of this magnitude. Special thanks to Anamika Panchoo for keeping our plates full right up until the end was finally in sight, at which point her shoes were amply filled by Melissa Maldonado. Without the patience and diligence of these coordinating editors, this book would never have been completed. Patrick Meader did a terrific job of fixing faulty prose, and Nick Waynik was great at helping haphazard code. Tom Welsh, Douglas Pundick, and Matt Moodie each took a turn as development editor, and all made sure each chapter is organized and sensible. And of course, we owe a debt of gratitude to a wide range of often-overlooked people responsible for indexing, page layout, dealing with printers and retailers, and surely other things I don’t know about; even though we as authors really don’t interact with most of you directly, and usually don’t even know your names, we know you’re there and doing important things. Keep it up!