Born in Dax (Landes) June 8, 1904. His father was an engineer in a gas factory. Gischia does advanced studies in the field of letters, history of art and archeology. In 1923 he devoted himself to art and becomes a pupil of Othon Friesz and Léger with whom he will teach several years later. He travels in Spain and Italy, and leaves for the United States in 1927, giving up painting: he gives French lessons at the Berlitz School and occupies himself with publicity. He takes up art again in 1936 and is entrusted with decorating the Pavillon des Temps Nouveaux with Léger, Le Corbusier, for the Universal Exposition of 1937. In 1941 he exhibits at the Exposition des Jeunes Peintres de Tradition Française and participates in the foundation of the Salon de Mai in 1944. He exhibits at the Galerie de France. He has also designed numerous stage décors, and has become the chief collaborator in this work for Jean Vilar and his Théatre National Populaire. He is the author of the essays: Sculpture in France Since Rodin, Primitive Arts.