Luiggi used the initial 'E.' for his surname in this catalogue. Several works depicted in this catalogue are held by the Sackner Archive. The loose sheet lists the prices for the works. -- Source of annotation: Marvin or Ruth Sackner.

The second section of this work, "Traite de Mathematiques" depicts black and white reproductions of 11 of Isou's Lettriste paintings whose content is primarily calligraphic markings and hieroglyphics. -- Source of annotation: Marvin or Ruth Sackner.

The individual works in this book are not identified nor signed. All the signatures are written on the inside page of the unbound cover page. Man Ray's contribution is an aquatint with imagery of abstract markings. The unbound pages in the book are sound poems written by Sabatier. -- Source of annotation: Marvin or Ruth Sackner.

This exhibition catalogue is virtually identical in content to the limited edition brochure with the same title, also held by the Sackner Archive. The exceptions are the light paper stock which has been used for this version and its title page. This ordinary catalogue prints the dates of the exhibition, 15 Octobre - 20 Novembre 1964 rather than "examplaire." -- Source of annotation: Marvin or Ruth Sackner.

This brochure is virtually identical in content to the exhibition catalogue with the same title, also held by the Sackner Archive. The exceptions are the heavy paper stock which has been used for this version and its title page. The latter prints "examplaire" in this version whereas the ordinary catalogue prints the dates of the exhibition, 15 Octobre - 20 Novembre 1964. -- Source of annotation: Marvin or Ruth Sackner.

Maurice Lemaitre was conspicuously absent from this exhibition although a photograph of him in a group appears on page 44 as does a worded photograph on page 57. This is a profusely illustrated catalogue of Lettrist artworks and documents comprising 249 b&w and color photographs. -- Source of annotation: Marvin or Ruth Sackner.