2. Paris, Les Editions Rieder, 1930, 20 x 15,5 cm, 64 pp, 60 b/w plates, orig. wrapp. (with some stains), from the series Maitres de l'Art Moderne. With an autograph dedication by the author to the Dutch art critic Jan Engelman.
2. Antwerpen, Librairie des Arts, 1960, 22,5 x 14,5 cm, 78 pp, orig. wrapp. 550 copies printed.
Anvers ( Antwerpen ), Librairie des Arts, 1960, in-8°, 22,5 x 14,5 cm, 78 pp,sewn, orig. wrapp. 550 copies printed. Text in French. Livre en français..