- iOS Programming: The Big Nerd Ranch Guide, 7th Ed. - Christian Keur & Aaron Hillegass - 2020 - The most practical hands-on guide to building real iOS apps with Swift and UIKit.
- SwiftUI by Tutorials - Kodeco Team - 2024 - Project-driven SwiftUI development for the modern iOS stack.
- Hacking with iOS - Paul Hudson - 2024 - SwiftUI and UIKit via 13+ projects; free online or paid.
- The Swift Programming Language - Apple - 2024 - Official Swift guide — free and always current.
- Swift in Depth - Tjeerd in 't Veen - 2018 - Generics, protocols, and idiomatic Swift patterns.