Master SwiftUI in 12 Days is a practical, hands-on guide designed to help iOS developers quickly and confidently build modern Apple apps using SwiftUI. Whether you’re coming from UIKit or starting fresh with Apple’s declarative UI framework, this book walks you step by step from core concepts to real-world application patterns—in just 12 focused days. Each day targets a specific SwiftUI topic, combining clear explanations , code examples , and best practices that reflect how SwiftUI is actually used in production apps. You’ll learn not just how SwiftUI works, but why it works that way—so you can write cleaner, more maintainable, and more scalable code. By the end of the book, you’ll be able to design responsive layouts, manage state effectively, build reusable views, handle navigation and data flow, and structure SwiftUI apps using modern architectural approaches. What you’ll learn SwiftUI fundamentals and the declarative UI mindset - Views, modifiers, layouts, and animations - State management (@State, @Binding, @ObservedObject, @StateObject, @Environment) - Lists, grids, navigation, and user interaction - Data flow and MVVM-friendly SwiftUI patterns - Reusable components and clean UI architecture - Best practices for building real-world SwiftUI apps Who this book is for iOS developers transitioning from UIKit to SwiftUI - Developers who want a fast, structured learning path - Senior engineers who want to modernize their iOS skill set - Anyone who wants to master SwiftUI without unnecessary theory Master SwiftUI in 12 Days is focused, practical, and designed to get you productive fast—so you can start building modern iOS apps with confidence.