Document, 1955 Letter from Yves Klein to Jacques Tournier, author of the weekly "Les Nouvelles littéraires, artistiques et scientifiques".
Artwork, 1961 Cité climatisée - Accès à l'éden technique [Climate-controlled City - Access to Technical Eden]
Document, 1956 Poster of the exhibition "Yves Propositions Monochromes", Galerie Colette Allendy, Paris,
Document, 1955 Invitation card for the exhibition "Yves peintures" at Club des Solitaires at Editions Lacoste, Paris
Document, 1956 Invitation card for the exhibition "Yves Monochrome Proposals" at Colette Allendy gallery