Augmented reality (AR) overlays computer-generated images on top of real-world environments in real time. The document discusses AR, comparing it to virtual reality. It outlines the stages of an AR project: definition and differences between AR and VR, available AR devices and technologies/platforms, feeling and sensing applications in AR, and conclusions. Applications discussed include interior design, medical, education, retail apps like Lenskart, and games like Pokemon Go. Advantages include enriched content and experiences, while security and accuracy of location data are challenges.