Jean Metzinger see the cubist works in Room 7 and 8. While Pablo Picasso and Georges Braque are generally acknowledged as the founders of the twentieth-century movement that became known as Cubism, it was Jean Metzinger, together with Albert Gleizes, that created the first major treatise on the new art-form, "Du "Cubisme"", in preparation for the Salon de la Section d'Or held in October 1912. "Du "Cubisme"", published the same year by Eugène Figuière in Paris, represented the first theoretical interpretation, elucidation and justification of Cubism, and was endorsed by both Picasso and Braque. "Du "Cubisme"", which preceded Apollinaire's well known essays,
Georges Braque known as the "Fauves" (Beasts) in 1905, he adopted a Fauvist style. The Fauves, a group that included Henri Matisse and André Derain among others, used brilliant colors to represent emotional response. Braque worked most closely with the artists Raoul Dufy and Othon Friesz, who shared Braque's hometown of Le Havre, to develop a somewhat more subdued Fauvist style. In 1906, Braque traveled with Friesz to L'Estaque, to Antwerp, and home to Le Havre to paint. In May 1907, he successfully exhibited works of the Fauve style in the Salon des Indépendants. The same year, Braque's style began a slow