Benjamin Vautier (known as "Ben") is a Swiss artist who lives in France (in Nice) and who is extremely famous here. In Belleville (a well-known quarter in the 20th arrondissement) he made this work. You may not realize it on this photo but the two guys (there is one up top on the roof, look closely!) that you think are installing this giant chalkboard on the building are actually puppets! I simply love it!