The contents of the book seem to be available here: https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Languag

The contents of the book seem to be available here: https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/index.html https://developer.apple.com/library/prerelease/ios/documenta... Also some other useful stuff: https://developer.apple.com/library/prerelease/ios/referencelibrary/GettingStarted/LandingPage/index.html https://developer.apple.com/library/prerelease/ios/reference...