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 £49.8m at Sotheby's in London. Throughout his life Picasso maintained several mistresses in addition to his wife or primary partner. Picasso was married twice and had four children by three women: Photographer and painter Dora Maar was also a constant companion and lover of Picasso. The two were closest in the late 1930s and early 1940s, and it was Maar who documented the painting of "Guernica". Picasso entrusted Christian Zervos to constitute the catalogue raisonné of his work (painted and drawn). The first volume of the catalog, "Works from 1895 to 1906", published in 1932, entailed the financial ruin of