Augmented reality (AR) is a technology that enables the user to see the real world, with virtual objects superimposed upon or composited with the real world. This book includes chapters focused on the following: the methodology of AR software for educational purposes; the use of augmented reality applications in the area of music education and music therapy; medical AR (in which the virtual entity is medical data); the role of AR in consumers' augmented experiences; and AR for cultural heritage, meaning the developments in multimedia technology to facilitate the learning experience in cultural heritage with the aid of improved user interaction methods.