Robert Motherwell (1915-1991) was an American abstract expressionist painter, printmaker, and editor of The Dada Painters and Poets. Motherwell's first known works were composed during a 1941 trip to Mexico with the Surrealist painter Roberto Matta. These eleven pen and ink drawings, collectively called the "Mexican Sketchbook," show the influence of Surrealism, yet they are essentially abstract in nature and balance formal composition with spontaneous invention. Motherwell's career then received a jump-start in 1943 when Peggy Guggenheim offered him the opportunity to create new work for a show of collages by several European modernists. The show proved successful for Motherwell, and it was followed by a solo exhibition at Peggy Guggenheim's Art of This Century Gallery in New York in 1944, and a contract with the dealer Sam Kootz in 1945.