Mystery Lover's Companion ~ Crown Publishing Group, November 1986. Hardcover in dust jacket, 311 pages, BCE. A pretty cool reference work, The Mystery Lover's Companion reviews and rates some 2500 books. The mini-reviews are typically 2-3 lines each and rate the book from one to five daggers. His definition of mystery is quite broad, encompassing thrillers and police procedurals. Some might say the reviews are too brief, but I don't think that's really a problem, as he's able to summarize the relative worth of the book fairly well. The book is divided into sections: The American Mystery, The English Mystery, The Thriller, The Police Procedural.