Patrick Scoffin

Patrick Skoff (January 22) is a Chicago-based artist most notable for his "art scavenger hunts" in which he leaves his poster-size paintings around the streets of Chicago for people to find and keep.
In addition to his art scavenger hunts, Skoff also is known for his series of miniature artwork titled Little Things and his live painting events in various locations in Chicago.

Biography fallback source: Wikipedia