828 pages, illustrated with coloured and black and white plates. Full title: "Cactus lexicon : enumeratio diagnostica Cactacearum / by Curt Backeberg ; with descriptions of many newer species (1966-73) by Walther Haage" Translated from the German by Lois Glass. The pages are lightly tanned, else pristine. Customers please note the book is heavy and will attract additional postage.