This project-based book provides a solid foundation for using Xcode, Apple's development environment for building iOS and OS X apps. Starting with the basics, the book shows you how to download, install, and start using Xcode--and moves to a detailed look at building and running applications. The final part of the book covers more advanced topics, such as testing, debugging, storyboarding, Automatic Reference Counting (ARC), and source-code management. With the book's hands-on approach, you'll be able to use the knowledge you gain from the book and apply them in your own projects.