Camp Concentration

No book-club issue of the Hart-Davis UK first is documented. Book-club tells apply on the US side: Doubleday-era club printings of this period are identified by a blind-stamped square or similar device at the lower corner of the rear board, absence of any price at the jacket flap, "Book Club Edition" printed at the jacket flap corner, and frequently a smaller trim than the trade issue. Doubleday used gutter codes on the last page of text for both trade and club printings from 1958 to mid-1987, which can further separate the two.