Georges Braque village scenes, for example, Braque frequently reduced an architectural structure to a geometric form approximating a cube, yet rendered its shading so that it looked both flat and three-dimensional by fragmenting the image. He showed this in the painting "Houses at l'Estaque". Beginning in 1909, Braque began to work closely with Pablo Picasso who had been developing a similar proto-Cubist style of painting. At the time, Pablo Picasso was influenced by Gauguin, Cézanne, African masks and Iberian sculpture while Braque was interested mainly in developing Cézanne's ideas of multiple perspectives. “A comparison of the works of Picasso and Braque during
Crystal Cubism towards the end of 1916, with an art world still under the pressures of war, to show the parallels between the poetic theories of Guillaume Apollinaire of Max Jacob and himself in marking the burgeoning of a new era for poetry and artistic reflection. In "Nord-Sud" Reverdy, with the help of Dermée and Georges Braque, exposed his literary theories, and outlined a coherent theoretical stance on the latest developments in Cubism. His treatise "On Cubism", published in the first issue of "Nord-Sud", did so perhaps most influentially. With his characteristic preference for offense rather than defense, Reverdy launched an attack