David Alfaro Siqueiros (1896-1974), born in Chihuahua, Mexico, was one of the founders of the modern school of Mexican mural painting. He was a political activist since his youth, and his art reflected his Marxist political ideology. He studied at San Carlos Academy of Fine Arts, Mexico City, and in 1913, he fought in the Mexican Revolution.He later continued his art studies in Europe and returned to Mexico in 1922. His murals portrayed social, political, and industrial changes and are characterized by monumental, dynamic compositions with sculptural treatment of forms and a limited color range.His work also emphasized the dramatic effects of light and shadow. Most of his large murals are in government buildings in Mexico.