Jean-Pierre Vasarely (1934-2002), professionally known as Yvaral, was a French artist working in the fields of op-art and kinetic art from 1954 onwards. He was the son of Victor Vasarely. Yvaral studied graphic art and publicity at the Ecole des Arts Appliques in Paris between 1950 and 1953. In 1960, Yvaral co-founded the Groupe de Recherche d'Art Visual (GRAV) with Julio Le Parc, Francois Morellet, Francisco Sobrino, Horacio Garcia Rossi and Joel Stein, seeking to develop a coherent abstract visual language composed of simple geometric elements.