Exhibition catalogue published in conjunction with traveling show held at National Gallery of Canada, Ottawa, September 13 – October 19, 1969 and Vancouver Art Gallery, November 12 – December 7, 1969. Elegant design. Contains essays by Flavin, Mel Bochner, Donald Judd, and show’s curator, Brydon Smith. Texts in French and English. Fully illustrated. with bibliography, exhibition history and checklist of works in exhibition. Essential document of Minimalism.