One famous engraving is called Libertad de expresión (Freedom of Expression) which deals with the coup d'état and fall of the Jacobo Árbenz government in Guatemala in 1954.The print caused a commotion in Mexico, showing an indigenous person with his mouth covered in chains and a padlock saying “USA.”[5] Referring to this work, he stated that Mexican artists have never had complete freedom of expression.[4] In the 1960s, he worked with photographers Mariana Yampolsky and Manuel Álvarez Bravo as well as with Leopoldo Méndez at the Fondo Editorial de la Plástica.[4][7] In 2010 he had an exhibition called Una reflexión sobre el Bicentenario in honor of the 200th anniversary of Mexico's independence at the Alfredo Guati Rojo National Watercolor Museum .This mural, El hombre y la mujer en armonía con su universo located at the University of Colima, was created as a stone mosaic in 2002 with marble, tezontle and other volcanic rock and cement.