Abstract art based on Cézanne's idea that all depiction of nature can be reduced to three solids: cube, sphere and cone. With the painting "Les Demoiselles d'Avignon" (1907), Picasso dramatically created a new and radical picture depicting a raw and primitive brothel scene with five prostitutes, violently painted women, reminiscent of African tribal masks and his own new Cubist inventions. Analytic cubism was jointly developed by Pablo Picasso and Georges Braque, from about 1908 through 1912. Analytic cubism, the first clear manifestation of cubism, was followed by Synthetic cubism, practiced by Braque, Picasso, Fernand Léger, Juan Gris, Albert Gleizes, Marcel Duchamp and
Pablo Picasso grounding in classical techniques. The museum also holds many precise and detailed figure studies done in his youth under his father's tutelage, as well as the extensive collection of Jaime Sabartés, his close friend and personal secretary. "Guernica" was on display in New York's Museum of Modern Art for many years. In 1981, it was returned to Spain and was on exhibit at the Casón del Buen Retiro of the Museo del Prado. In 1992 the painting was put on display in Madrid's Reina Sofía Museum when it opened. In the 1996 movie "Surviving Picasso", Picasso is portrayed by actor