Xenakis' drawing entitled 'Encre de chine' that is depicted on one of the unnumbered pages in this book is held by the Sackner Archive. -- Source of annotation: Marvin or Ruth Sackner.

The images constiting this print are depicted in black outlines. -- Source of annotation: Marvin or Ruth Sackner.

Xenakis's Journal of 1974 is depicted that is also held by the Sackner Archive. The Sackner Archive catalogue of 1984 that list this and other works by Xenakis is listed in the bibliography of this book. -- Source of annotation: Marvin or Ruth Sackner.

This card depicts a Xenakis painting on the outside wall of a house in France. -- Source of annotation: Marvin or Ruth Sackner.

This work is depicted in an exhibition catalogue held by the Sackner Archive, Tecken, page 105 and also in '15 and d'art semiotique.. -- Source of annotation: Marvin or Ruth Sackner.

curry gives a highly favorable review for What #2. "these are not "experimental" works & this is not a magazine of same. these are fully realized accomplishments in the realm of visual language, a realm in which the wallpaper poem & scattered collage proliferate. Kaldron is a tasty antidote to drive away the eyesoreness caused by most magazines of its ilk." -- Source of annotation: Marvin or Ruth Sackner.

This is the same image as Asphxie '71 but overprinted in blue and white outlines, rotated 180 degrees, absent the caption 'Asphxie 71,' and printed with a gray background. -- Source of annotation: Marvin or Ruth Sackner.

This is the same image as Asphxie '71 printed in solely black outlines but overprinted with red ink, rotated 180 degrees, and absent the caption 'Asphxie 71.'. -- Source of annotation: Marvin or Ruth Sackner.

This is the same image as Asphxie '71 but with white outlines and blue background, rotated 180 degrees, absent the caption 'Asphxie 71..' -- Source of annotation: Marvin or Ruth Sackner.

Ruth and Marvin Sackner are mentioned as being collectors of Qotbi's works. -- Source of annotation: Marvin or Ruth Sackner.

The catalogue depicts the typical imagery employed by Xenakis, i.e., mainly signs that can be obtained by stencils for chemistry, road sign directions, etc. His conceptual newspaper that is also held by the Sackner Archive is reproduced. -- Source of annotation: Marvin or Ruth Sackner.

This catalogue consisted of 26 gouaches completed between 1978 and 1982. -- Source of annotation: Marvin or Ruth Sackner.