A biography of Tilson is printed on each page of the catalogue with the art projects created during that time frame. Photographic reproductions of pages from Tilson's periodicals, Cipher and Atlas, are included in this catalogue. These periodicals are also held by the Sackner Archive. -- Source of annotation: Marvin or Ruth Sackner.

As noted in his biography, Tilson was "originally associated with the British Pop Art movement in the early 1960's. He was soon led in a different direction by his deeply held convictions and his dissatisfaction with the technology and industrial 'progress' of the consumer society. Art, Tilson has written, is a symbolic discourse of which mankind alone is capable." -- Source of annotation: Marvin or Ruth Sackner.