Magritte
Image of pipe and passport of Rene Magritte
René François Ghislain Magritte (21 November 1898 – 15 August 1967) was a Belgian surrealist artist. He became well known for a number of witty and thought-provoking images that fell under the umbrella of surrealism. His work challenges observers' preconditioned perceptions of reality.
Image and text via Wikipedia.