 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.