"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....

Skylar Collins of Lovelace Academy intends to win at the Scholastic Exposition, (an extremely nerdy academic competition) using her latest app, which she considers a brilliant piece of coding; but first she has to assemble a team, and she will do anything to accomplish that, even if it means playing Cupid for teammates Joey and Zane--but her people skills are not as good as her coding, and when she starts to feel attracted to Zane things get even...