Editorial, 1957, Yves Klein "...make portraits of the readers of my monochromes...impregnated with sensibility, just as the sponges", excerpts from writings Excerpts from writings
Photo, 1957 Yves Klein in front of his Sponge Sculpture at the exhibition "Monochrome Propositions of Yves Klein" Gallery One, London
Movie, 1959 Yves Klein's exhibition : Bas-reliefs dans une forêt d'éponges [Bas-reliefs in a forest of sponges], galerie Iris Clert, Paris, France
Photo, 1959 Rotraut Uecker, Iris Clert and Yves Klein during the opening of the exhibition "Bas-reliefs dans une forêt d'éponges"