Brief introduction to mixed reality including original example projects in virtual reality (VR), augmented reality (AR), augmented virtuality (AV), and real virtuality (RV), AKA ubiquitious and mobile computing. Includes examples of whole-body immersion, gesture-based interaction, and on-body interaction. Also, explore the state of the art in the scientific literature and the market place, including Oculus Rift, Microsoft Hololens, Google Cardboard, and Google Tango.