Hacking with Swift is a complete Swift training course by Paul Hudson that teaches you app development through 38 hands-on projects. Everything is taught as part of a practical project, so you can immediately apply your knowledge as you learn. All project files are open source available on GitHub. I featured this Project on Product Hunt, because it helped me learning one of the most interesting programming languages. I things, this book is the best way to start developing for iOS and Mac OS.

Alright, @ProductHunt: the first 100 users who buy the book using this discount link will get 50% off: https://gum.co/hws-book-pack/ph2016