There's a new language in town. Swift is Apple's new, native, fast, and easy to learn programming language for iOS and OS X app development. It's their "Objective-C without the C". If you are an iOS developer or planning to become one, learning Swift is your #1 priority, and Learn Swift on the Mac tells you everything you need to get up to speed, well, swiftly.
The team that brought you the bestselling Beginning iPhone Development, the book that taught the world to program on the iPhone, has been transformed to deliver the same excellent introduction to iPhone and iOS programming using Swift. Beginning iPhone Development with Swift introduces you to Swift in this definitive guide up-to-date with Apple's latest and greatest new iOS 8 and its SDK, as well as with the latest version of Xcode 6. (Source code now updated to reflect Xcode 6.1.1!)