You can create your own apps for Android devices and it's easy to do. This extraordinary book has been updated for App Inventor 2, a powerful visual tool that lets anyone build apps. Learn coding with step-by-step instructions for more than a dozen fun apps, including a text answering machine app, a quiz app, a Mole Mash game, and an app for remembering where you parked your car! The second half of the book features an Inventor s manual to help you understand the fundamentals of app building and computer science. App Inventor 2 makes an excellent textbook for beginners and experienced developers alike.

David Wolber is the Chair of Computer Science at the University of San Francisco. David teaches App Inventor at USF. The apps created by his students- mostly humanities and business majors with no prior programming experience-have been chronicled in articles of the New York Times, San Francisco Chronicle, Tech Crunch, Fortune.CNN.com, and Yahoo news.§David began teaching App Inventor as part of Google's 2009 pilot program involving ten universities. In 2010, he received a grant from Google to work with the App Inventor team and authored the advanced tutorials that appear on the App Inventor site. He is currently writing a book on App Inventor along with Hal Abelson that will be published by O'Reilly in Spring 2011. Ellen Spertus is an Associate Professor of Computer Science at Mills College, where she has taught with App Inventor, and a Senior Research Scientist at Google, where she was one of the App Inventor developers. She and her work have been written about in Wired, USA Today (which described her as "a geek with principles"), and in The New York Times (as one of three "women who might change the face of the computer industry").