Street artist JR is likely best known for his TED Talk in which he proposed his Inside Out Project - a global initiative to get people to take portraits of themselves, receive large scale posters of the images and then post them up in public. It is quite an undertaking that seems to be going well. Beyond that, his own work consists of absolutely enormous pieces posted in places around the world. Browsing through his Project portfolio you see images that take up the entire side of buildings, or overtake an entire train car. It's insane. I assumed most had to be projections because of their scale but, upon further inspection, it appears that they're permanently wheat-pasted in place.

via Blake.