Android Programming: The Big Nerd Ranch Guide (Big Nerd Ranch Guides) About the Author Bill Phillips is a fellow and instructor at Big Nerd Ranch. He cowrote and taught the original Big Nerd Ranch Android Bootcamp, as well as the earlier editions of this book. Since then he has been teaching, writing blog posts, reading various kinds of literature, writing and playing music, and working on books.Chris Stewart is the director of the Android team at Big Nerd Ranch, where he is also an Android Bootcamp instructor. He is dedicated to constant improvement and works to perfect his craft as much as possible. When not in front of a computer, Chris enjoys hiking and traveling.Kristin Marsicano is an Android developer and instructor at Big Nerd Ranch. Always an educator at heart, she is passionate about learning, software development, and the intersection of the two. When she is not teaching or developing apps, you can find Kristin cooking for her growing family, doing yoga, or learning something new.