Chris Wilmer would like to thank his wife Emily Winerock and his family for their patience and early feedback. Conrad Barski would like to thank his wife Lauren Barski and daughter Ava Barski for their support as he was working on this book and for their patience during all the weekends and evenings he spent to get it done.

Special thanks go to Richard Ford Burley, for substantial editorial help in the early drafts of this book, and to Patrick Fuller, for reviewing the pro- gramming sections. Many of the great people at No Starch Press helped us to get this book into shape, including Serena Yang, Tyler Ortman, Bill Pollock, and others.