Mike Hendrickson has held a variety of positions in the publishing industry including, Product Development Manager, Editor, Executive Editor, Editor-in-Chief, and Associate Publisher. Two constants are that he has always enjoyed managing people and being involved with cutting-edge technologies. At O'Reilly, he is the Publisher for the Open Tech eXchange division, where he is working to grow existing print market share while expanding into new online and in person markets. Brian Sawyer is an editor for O'Reilly's Head First division. He's also served as lead editor for the company's popular Hacks series, editor for Missing Manuals and Make: Books, and contributing editor to Craft magazine. When not writing about the technology, his favorite Android apps help him train for marathons (see Chapter 4).
