This document discusses how augmented reality (AR) can be used in different industries like entertainment, retail, and real estate. It provides examples for each industry. AR can be used to showcase upcoming movie events, allow customers to virtually try on furniture before buying, and interact with 3D models of properties. The document also describes different AR technologies like face tracking, Oculus Rift virtual reality, Leap Motion hand tracking, Kinect full body tracking, 3D holographic displays, and virtual mannequins. It provides video demos for some of these technologies.