"Mastering Augmented Reality Development with Unity" is a comprehensive guide that will take you from beginner to expert in AR development. Whether you are a beginner or an experienced developer, this book is the perfect resource for learning to create amazing AR experiences. The book begins with an introduction to AR, covering its core principles and potential applications. You will learn how to visualize AR environments and create visually stunning experiences. Next, the book explores the various tools and development platforms available for AR, with a focus on Unity 3D as the industry-standard platform. You will be guided through creating custom AR components and refreshing your C# programming skills within Unity. The book covers practical applications of AR development, including building 3D mobile apps, marker-based AR apps using Vuforia, and marker-less AR apps with AR Kit and AR Core. You will also learn about world-scale AR development with Niantic Lightship. The latter part of the book focuses on best practices in AR application design, ensuring intuitive and user-friendly experiences. Additionally, readers will learn techniques for optimizing AR app performance. By the end of the book, you will be able to build AR applications with Unity 3D with ease.