Our goal was to illustrate as many aspects of the American detective short story as we could. Thus we present examples of sleuth types, including amateurs like Poe's Dupin, 'scientific sleuths' like Futrelle's Professor S. F. X. Van Dusen and Arthur B. Reeve's Professor Craig Kennedy, hard-boiled dicks like Robert Leslie Bellem's Dan Turner, and police characters like Ed McBain's Eighty-seventh Precinct cop Dave Levine and my own Jim Chee and Joe Leaphorn. We also feature 'accidental sleuths'-characters who happen upon a crime and manage to discover the truth-as do the characters in Glaspell's «A Jury of Her Peers» and Mary Roberts Rinehart's «The Lipstick.» And Mignon G. Eberhart's Susan Dare, Sue Grafton's Kinsey Millhone, and Linda Barnes's Carlotta Carlyle join Green's Violet Strange as female private investigators. Melville Davisson Post's Uncle Abner and William Faulkner's Uncle Gavin Stevens are sermonising sleuths who grind moral axes until they shine, while Clayton Rawson's The Great Merlini adds sparkle to his sleuthing by means of his practical expertise in magic.

Stories that succeed in presenting examples of sleuth types also demonstrate regionalism, for which American detective fiction has become known. The works of Glaspell, Post, Bellem, and Faulkner portray distinctly American scenes, as does my own short story «Chee's Witch,» which illustrates the move into the use of ethnic detectives.

Although our table of contents includes the names of a good number of famous authors, we were more concerned to find the best story to represent a trend in the genre. Some of our selections are classics; some represent little-known writers whom we consider 'good finds' for readers. For example, we considered Clinton H. Stagg's «The Keyboard of Silence» delightful and included it as a gem that deserves to be better known, and not only because Stagg's blind sleuth demonstrates how disabled detectives can function efficiently.