Marcel Duchamp

Laundry Barge, 1910

A propos de Jeune Soeur (About Young Sister), 1911

Portrait of Chess Players, 1911



 Nude Descending a Staircase no. 2, 1912

Transition of virgin into a bride, 1912 oil on canvas
Museum of Modern Art, New York, USA

Marcel Duchamp (28 July 1887 – 2 October 1968) was a French-American painter, sculptor and writer whose work is associated with Dadaism and conceptual art.

source: http://en.wikipedia.org/wiki/Marcel_Duchamp