This document presents an overview of Sixth Sense technology, a wearable gestural interface created by Pranav Mistry. Sixth Sense allows users to access and interact with digital information by using hand gestures and augmenting the physical world. The prototype consists of a pocket projector, camera, colored markers, and mobile device. It analyzes what the user sees and projects digital information onto surfaces. Some advantages include easily drawing, capturing photos, checking product brands, reading books, and seeing flight statuses. The current prototype costs around $350 to build. The inventor, Pranav Mistry, is a researcher at MIT who aims to seamlessly connect the digital and physical worlds through this technology.