(b Santurce, Puerto Rico, 1939).
Puerto Rican printmaker, painter, draughtsman, illustrator and performance artist. He studied in Spain in 1961–2 under Julio Martín Caro and with Lorenzo Homar at the graphic arts workshop of the Instituto de Cultura Puertorriqueña (1962–5). He inherited a social and political commitment from Puerto Rican artists working in the 1950s, but introduced wit and irony to his satirical treatment of political themes in prints, posters and illustrations. From the late 1960s, for instance, he produced portfolios of woodcuts in which he combined texts and images as a way of commenting on social and political events.
Martorell founded the Taller Alacrán in 1968 with the aim of mass-producing art at affordable prices. In the 1970s he began to experiment with innovative printmaking techniques, for example in a series of cut-out works influenced by Pop art, in which he played on stereotypes of authoritarianism in Latin America. In subsequent prints he explored the painterly qualities of woodcuts on a monumental scale. From the late 1970s, however, he was increasingly concerned with innovative live performances that combined printmaking and painting with the movement of actors. From ...