Mapback is a term used by paperback collectors to refer to the earliest paperback books published by Dell Books, beginning in 1943. The books are known as mapbacks because the back cover of the book contains a map that illustrates the location of the action. Dell books were numbered in series. Mapbacks extend from #5 to at least #550; then maps became less of a fixed feature of the books and disappeared entirely in 1951. The occasional number in the series between #5 and #550 contains no map, but some sort of full-page graphic or text connected with the book's contents. The artwork of the maps began with quite detailed maps, and later numbers contain more stylized ones. "The back cover map was very popular with readers and remains popular with collectors... the Dell 'mapbacks' are among the most well known vintage paperbacks." "Dell's most memorable design innovation was not on the front but on the back covers... the entire back covers given over to maps, or variously charts, blueprints, or what have you to represent story locale or scene of the crime: a stretch of California highway, the interior of an apartment, a sheik's 'city of stones.' It was an enjoyable if slightly goofy gimmick and, amazingly, managed to last nearly ten years."
Other features
"Besides distinctive front covers and back-cover maps, Dell paperbacks also had a number of other interesting features, including an "eye-in-keyhole" logo, front-cover blurbs, character lists, lists of key items or events in the book, crowded title pages, and special chapter titles." Some publishers, including Dell, thoughtfully included brief lists of the main characters in their books -- especially in mysteries -- to allow readers to keep the characters straight. In mapbacks, "Persons this Mystery is about" followed the inside flyleaf, and gave a short descriptive paragraph. For instance, the protagonist of the mapback shown at right is described as follows: The "tantalizer-pages" contained two features meant to entice the browsing reader. "What this Mystery is about" gives a list of clues and events that are found within. Those from Rim of the Pit include: And the enticing section, "Wouldn't you like to Know --"
What made a Great Dane suddenly leap to his feet during the seance, growl and quiver in fear?
Why the appearance of the hideous apparition caused such obvious terror in the medium?
The significance of the words "net" and "emit" on the inside of an envelope?
Why all the mirrors in the dead woman's room were smashed?
Of course, non-mysteries had somewhat less tantalizing clues and questions, but the same format was kept. The "List of Exciting Chapters" featured chapter titles which were frequently added or changed by Dell editors.
Types of mapbacks
Mapbacks were primarily mysteries, but many different sorts of books found their way into this inclusive line. A few oddities were published without a map on the back cover. Dell "War Books" such as #26, The Raft and #32, This Time For Keeps, had back covers which exhorted the reader to "Buy War Bonds and Stamps", as did books of jokes and cartoons such as #38, Liberty Laughs and #77, G.I. Jokes. The rarest mapback of all is #278, Second Dell Book of Crossword Puzzles edited by Kathleen Rafferty, also map-less. Two other genres which had a number of entries in the mapback line were romances and Westerns. Romances were not frequent, and were by "name" authors such as Faith Baldwin and Mary Renault, only occasionally descending to the level of the "nurse romance". The quality of Westerns was also generally high, including authors such as William MacLeod Raine and Bliss Lomax . There are a number of movie tie-in novels in the series. One of the most significant is #262, Rope as by Alfred Hitchcock -- actually written by Don Ward -- with a cover featuring James Stewart. The second mapback edition of Gerald Butler's Kiss The Blood Off My Hands is published as The Unafraid, with a cover photograph of Joan Fontaine and Burt Lancaster. Other novels in the series are those upon which well-known films were based, although without movie tie-in covers -- these include Tugboat Annie, The Sheik, Now, Voyager, The Harvey Girls and Mary Roberts Rinehart's The Bat. But by far the largest number of mapbacks is made up of mysteries. The mapback series contains some significant first editions by famous authors such as Dashiell Hammett, and interesting editions of such authors as Rex Stout, Agatha Christie, Cornell Woolrich, Erle Stanley Gardner writing as A. A. Fair, John Dickson Carr and his alter egoCarter Dickson, and Ellery Queen. There are editions of other mysteries which have stood the test of time and are still considered moderately significant today, such as the works of Phoebe Atwood Taylor, Patricia Wentworth, Stuart Palmer, Clayton Rawson, Earl Derr Biggers, Patricia McGerr, Baynard Kendrick, Margaret Millar, Mary Roberts Rinehart, C. W. Grafton and many others. The Dell mapback line also contains a number of mysteries by writers who have fallen out of favor over the years -- or who were never popular. Collectors cherish the camp value of such mysteries as Murder Wears Mukluks by Eunice Mays Boyd, The Body That Wasn't Uncle by George Worthing Yates, and Death Wears a White Gardenia by Zelda Popkin. The mapback line is also notable for what it does not contain -- mapbacks never partook of two popular trends in the 1950s that flourished at other paperback houses, namely the "lesbian confession" novel and the "juvenile delinquent" or "juvie" novel.