Georges Braque He painted many still life subjects during this time, maintaining his emphasis on structure. One example of this is his 1943 work "Blue Guitar", which hangs in the Allen Memorial Art Museum. During his recovery he became a close friend of the cubist artist Juan Gris. He continued to work during the remainder of his life, producing a considerable number of paintings, graphics, and sculptures. Braque, along with Matisse, is credited for introducing Pablo Picasso to Fernand Mourlot, and most of the lithographs and book illustrations he himself created during the 1940s and '50s were produced at the Mourlot Studios.
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