"JR is the pseudonym of a French photographer and artist whose identity is unconfirmed. Describing himself as a photographer, he flyposts large black-and-white photographic images in public locations, in a manner similar to the appropriation of the built environment by the graffiti artist. He states that the street is "the largest art gallery in the world". He started out on the streets of Paris. JR's work "often challenges widely held preconceptions and the reductive images propagated by advertising and the media."