The expressionists focused on the expressive distortions of El Greco. According to Franz Marc, one of the principal painters of the German expressionist movement, "we refer with pleasure and with steadfastness to the case of El Greco, because the glory of this painter is closely tied to the evolution of our new perceptions on art". Jackson Pollock, a major force in the abstract expressionist movement, was also influenced by El Greco. By 1943, Pollock had completed sixty drawing compositions after El Greco and owned three books on the Cretan master.