*[Essential Swift](https://essential-swift.programming-books.io) - Krzysztof Kowalczyk (Compiled from StackOverflow Documentation)
*[Hacking with Swift](https://www.hackingwithswift.com)
*[Swift Notes for Professionals](https://goalkicker.com/SwiftBook/) - Compiled from StackOverflow Documentation (PDF)
*[The Swift Programming Language](https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/index.html)(HTML)[(iBook)](https://itunes.apple.com/us/book/swift-programming-language/id881256329?mt=11)
