Augmented Reality (AR) uses information in the form of text, graphics, audio, and other virtual enhancements that are registered with real-world objects in real-time. AR enhances the user's interaction with the real world and provides added value over virtual reality. This book presents various AR applications ranging from real-time information display and applications in the construction industry and architecture to medical applications. It provides an overview of how AR is applied in these areas and showcases the current state of the art. This book is essential reading not only for researchers and technology developers but also for students (both graduates and undergraduates) and anyone who is interested in the application of AR technology in practice.