Learn SwiftUI - An introductory guide to creating intuitive cross-platform user interfaces using Swift 5 - Chris Barker

SwiftUI is a powerful interface toolkit that lets you design and build iOS, iPadOS and macOS apps using declarative syntax. This beginner's guide explores all the fundamentals components of the framework and presents them to you in an easy-to-follow manner to get you started with building apps using SwiftUI and Swift programming.