Born in Mexico in 1958, Eko is an engraver and painter. His wood etchings, often erotic in nature and the focus of controversial discussion, are part of a broader tradition in Mexican folk art popularized by José Guadalupe Posada. He has collaborated on projects for the New York Times, the Frankfurter Allgemeine Zeitung, and the Spanish daily El País, in addition to having published numerous books in Mexico and Spain.