Covering a broad spectrum of primary and secondary reference resources about mystery and detective fiction, this annotated bibliography focuses on all print and key electronic sources in the field that are produced in English. Organized thematically, it reviews encyclopedias, dictionaries, handbooks, annotated guides, bibliographies, bio-bibliographies, vade mecums, compendiums, indexes, and so on. Many Web sites are also described. Lengthy, informed reviews often provide evaluative information and compare books to similar or related titles. Essential to researchers, this is a valuable guide for any collection that holds a substantial number of mystery and detective titles, including college, university, public, and some high school libraries.