This document discusses augmented reality (AR), which supplements elements of the real physical world with computer-generated perceptual information. AR combines real and virtual objects and interacts in real-time. The document outlines several current uses of AR in navigation, education, entertainment, and healthcare. It provides examples of AR applications for medical visualization, assisting those with autism, vein finding, remote medical documentation, remote collaboration, and ecommerce product visualization. The document concludes that AR systems will instantly retrieve and display related data to a user's view, with many potential applications, and that the AR market is growing significantly each year.