Used First Addition Book Stores

Adam Smith Books - Selection of modern first editions.
Babcock Books - Modern first editions of fiction, poetry, detective and science fiction with emphasis on signed books, notable writers and literary prizewinners.
Blair Cowl - Specialising in first editions of occult books and 19th-20th Century literature.
BMD Books - Modern first editions, mostly mystery, science fiction and fantasy.
Cromwell Books - Used and rare books in all conditions from reading copies to collectible first editions.
Deiltak.com - Suppliers of modern first editions, particularly UK firsts, in fiction, biography and non-fiction.
Exciting Books - First edition books for sale.
Gembrooks Books - Signed and unsigned modern first editions.
Ken Hebenstreit, Bookseller - First editions of 20th century literature, fiction, mysteries, suspense and fantasy.
Legends Fine and Rare Books - British and American collector quality modern first editions. Specializing in mysteries and thrillers.
Modern Firsts - A large selection of rare and collectable books; first editions of modern and contemporary literature, as well as crime and mystery fiction.
Nooks of Books - Graded first editions across a wide range of searchable categories, many signed. Online/offline search services.
Old Pueblo Books - Mystery, detective, suspense; a specialty is signed first editions.
Sandstone Books - Modern first editions of fiction books, from 1925 to the present.
Sawtooth Booksellers - Modern first editions of mysteries and fiction and modern literature, including many signed books and uncorrected proofs.
20th Century Shop - Specializing in first editions of the literature of modernity and the 20th Century.
Yesterday's Gallery - Fiction from the early 20th century, including mysteries, fantasy, westerns, and novels into film.