iOS 8 Programming Fundamentals with Swift: Swift, Xcode, and Cocoa Basics (2015)
Part I. Language
Chapter 1. The Architecture of Swift
Chapter 3. Variables and Simple Types
Chapter 5. Flow Control and More
Part II. IDE
Chapter 6. Anatomy of an Xcode Project
Chapter 9. Life Cycle of a Project
Part III. Cocoa
Chapter 13. Communication Between Objects
Appendix A. C, Objective-C, and Swift