Practical Swift [Repost]

Take a firsthand tour of Xcode and all the latest features Swift 3 has to offer.
If you have picked up this book, chances are you know a little bit about Swift Programming. With Practical Swift you’ll develop an advanced understanding of the language that will enable you to create a reference guide using Xcode Playgrounds, one you can continue to grow throughout your iOS career.

This book not only shows you how to code in a clean and concise manner, but also the why behind the code. Understanding why will be instrumental in your advancement as a Swift developer.