I don't think you can beat: https://books.apple.com/us/book/the-swift-programming-language-swift-5-2/id881256329 https://books.apple.com/us/book/the-swift-progr

I don't think you can beat: https://books.apple.com/us/book/the-swift-programming-language-swift-5-2/id881256329 https://books.apple.com/us/book/the-swift-programming-langua... Xcode Playgrounds (different from the iPad/macOS Playgrounds app) are really helpful for learning the language or testing things out. For a complete course, see http://web.stanford.edu/class/cs193p/cgi-bin/drupal/ http://web.stanford.edu/class/cs193p/cgi-bin/drupal/. Apple also has a series on creating iOS apps. It may be too beginner focused though. https://books.apple.com/book/id1118575552 https://books.apple.com/book/id1118575552