To my son, Zach, who plays the trumpet

Psalm 150:3

—Tim Berglund

This book is dedicated to my entire extended family who, in numerous ways, facilitated the creation of this first of many books. To my beautiful and supportive wife Madelaine for allowing me long nights of typing and days of constant Gradle talk. My daughters Scarlette and Violette for playing rounds of Angry Birds while I made on-the-road commits to the book. My brother Jordan for promoting Gradle in his circle of Denver developers and supporting my photographic imagery needs in Gradle educational materials. And my parents Terry and Marylyn for bearing the laptop coming out even at dinner whenever a few more paragraphs could be composed.

—Matthew McCullough