example is The Loving Couple: His (and Her) Story, a 1956 novel by Patrick Dennis. Here, the books are first-person accounts of a rocky marriage, one narrated by the husband, the other by the wife. The format became widely known in the 1950s, when Ace Books began to publish its Ace Doubles. This was a line of tête-bêche genre paperbacks that ran from 1952 through the early 1970s. The Ace Doubles binding was considered innovative, if gimmicky, at the time; the 18 October 1952 issue of Publishers Weekly describes it as a "trick format". More recently, the format was used for the 1990 Methuen paperback edition of Monty Python's Flying Circus: Just the Words, a two-volume collection of the scripts of the television series. References Bookbinding Book formats