Become an App Inventor : the Official Guide from MIT App Inventor

"Have you ever wanted to build your own mobile apps? App Inventor, a free and revolutionary online program from MIT, lets you do just that. With the help of this companion guide chock-full of colorful graphics and easy-to-follow instructions, readers can learn how to create six different apps, including a working piano, a maze game, and even their own chat app to communicate with friends-then use what they've learned to build apps of their own imagination. User-friendly code blocks that snap together allow even beginners to quickly create working apps. Readers will also learn about young inventors already using their own apps to make a difference in their communities, such as the girls from Mumbai, India, whose app lets their neighbors know when it's their turn to collect water from the communal tap, saving them hours waiting in line. Or the boys from Malden, Massachusetts, whose app lets residents geotag potholes to alert city hall when repairs are needed. With this inspiring guide, curious young dreamers can become real inventors with real-world impact"--