Recs.
Updated
Hacking with Swift is an hands-on, project-oriented book that teaches iOS app development with Swift.
Specs
Pros
Pro Comprehensive; has many practical projects to work through
Hacking with Swift is project-oriented. It takes you through Swift and iOS with 39 different projects — each introducing a new concept, API, or methodology incrementally. The projects are comprehensive and covers many important iOS concepts and APIs beyond the fundamentals (e.g. Core Data, Touch ID, application profiling and debugging), including working with graphics and making games with it. By the end of the course, you will have gained practical experience into the inner workings of Swift and iOS.
Cons
Con Format can be tough to work through if you are not used to programming books
While Hacking with Swift is well-organized, there is no interactivity and everything is in text or screenshots. This can make it hard to follow through if you are not used to reading long programming tutorials or books.