The Taller de Gráfica Popular (Spanish: "People's Graphic Workshop") is an artist's print collective founded in Mexico in 1937 by artists Leopoldo Méndez, Pablo O'Higgins, and Luis Arenal. The collective was primarily concerned with using art to advance revolutionary social causes. The print shop became a base of political activity and abundant artistic output, and attracted many foreign artists as collaborators. Source: Wikipedia (en)