Alberto Maldonado has worked in the Mexican field of comics since 1972. He has drawn stories with charachters like 'El Pantera', created by Daniel Muñoz, in alternation with artists like Juan Alva and Manuel Calles. He has illustrated several of the so-called "ghetto librettos", cheap pulp comic books full of sex and violence. Maldonado has drawn for publishing houses like Ejea and Toukan on titles like Sensacional de Guerreros del Asfalto and Yo Confieso. He also drew for the Toukán magazine Místico. During a stay in the USA, he has drawn for the Eclipse title 'Skywolf' in 1988.