Ensemble de 10 livres collection Werner Spies, New York, Abrams: – Max Ernst – collages I (vol 1 and 2) – Max Ernst – collages II – Max Ernst – From material to style (vol 3) – Picasso – The sculptures (vol 4) – The continent names Picasso (vol 5) – Paths to the twentieth century (vol 6) – Surrealism and its age (vol 7) – Between action painting and op art (vol 8) – From pop art and to the present (vol 9) – Litterature and business (vol 10)