San Mateo Book Dealers Retail 86 E 3rd Ave Welcome to the M is for Mystery Bookstore. We carry a large selection of new and used mystery, detective and crime fiction including new releases, bestsellers, first editions, signed books and mysteries for young people. San Mateo CA Book Dealers Retail M Is For Mystery www.mformystery.com mystery crime detective fiction murder sleuth noir sherlock holmes thriller cozy spy espionage book store independent bookstore literature edgar award english american san francisco san mateo first edition signed autographed collector novel short st mystery crime detective fiction murder sleuth noir sherlock holmes thriller cozy spy espionage book store independent bookstore literature edgar award english american san francisco san mateo first edition signed autographed collector novel short st Business Reviews M Is For Mystery Testimonials