This book examines two topics in the context of product design and enabling technologies: User eXperience (UX) and eXtended Reality (XR). UX regards the ways in which people interact with the environment and with objects and is considered of primary importance in many contexts. When developing new products, UX must be carefully designed and evaluated directly with the users. Prototyping is a well-known, effective, and widely used practice for design evaluation. The book describes how prototyping based on XR technologies, including Virtual, Augmented and Mixed Reality, is a...