Acknowledgments

The more books I write, the more I appreciate those around me who help me do it.

This book never would have been finished without the continued efforts of Rebecca Gulick, my editor, and the entire staff at The Pragmatic Bookshelf. Their questions, comments, and editing shaped the book into what it is today. Along the same lines, I owe a great deal of thanks to the tech reviewers who helped go over pre-release versions of the book: Chris Adamson, Thomas Alvarez, Albert Choy, Kevin Garriott, Gábor László Hajba, Alexander Henry, Jason Humphries, Carlos Lopez, Kevin Munc, Stephen Orr, Mayur Patil, Kim Shrier, Mario Tatis, Mattio Valentino, Matthew White, and Stephen Wolff. Thanks to them taking time out of their busy schedules, the book’s technical contents are that much more accurate.

Working on a book necessarily means not doing other things, and my family has definitely had to put up with my absence and distraction as I’ve undertaken writing this one. They’ve earned many thanks. Hopefully watchOS 3 won’t change as much as watchOS 2 did!

Finally, I’d like to thank my coworkers and the cofounders of Detroit Labs. Working at such an amazing place allows me to do things like write books in my free time. I can honestly say Detroit Labs is the best place I’ve ever worked, and I can’t imagine being anywhere else.