Banksy Was Here: The invisible man of graffiti art

"Whoever he is, Banksy revels in the incongruities of his persona. 'The art world is the biggest joke going,' he has said. 'It\'s a rest home for the overprivileged, the pretentious, and the weak.' Although he once declared that 'every other type of art compared to graffiti is a step down,' in recent years he has produced his share of traditional works on canvas and on paper, suitable for hanging indoors, above a couch."