A major figure in Optical and kinetic art, Argentine artist Julio Le Parc born in 1928 has lived and worked in Paris, France since 1958. He met gallerist Denise René and artist Victor Vasarely, he had previously discovered their works along with his fellow countrymen Garcia Rossi and Sobrino during a retrospective show held at the Museo de Bellas Artes in Argentina. He soon developed a radical geometric abstraction, based on repetition and the combination of geometric forms. He was a founding member of the Groupe de Recherche d'Art Visual (GRAV), and in 1960 while in the group he made artworks which examined his interests in movement, light, optical illusions and the interactions of the viewer and the artwork. Fascinated with the plastic quality and the instability of lighting, Julio Le Parc created his mobiles which studied the effects natural and artificial lighting on the perception of form on his sculptures. Starting in 1966 he was regularly shown at Galerie Denise René, the same year he received the Grand Prize at the international Venice Biennale. Of the many renowned exhibits he has been part of, 2013 has been the biggest so far where he received a major retrospective at the Palais de Tokyo in Paris.