| A-ha! Books: rare and out-of-print books, autographs and maps. Online catalogues and book search services. |
| A. A. Wilson: English and American Literature, Modern First Editions, Reference, and Military History. |
| A.B.Normal Books: Modern 1st edition and limited edition science fiction, fantasy, horror, related young adult and reference books. |
| ABookLegacy: Mostly out of print non-fiction books; Americana, genealogy, history, military, and general subjects. |
| Adams Used Books: Second-hand cross stitch patterns, books, and magazines including hard to find and out-of-print. |
| Adrian Harrington: Specialising in literature, modern first editions and bound library sets; fine and rare books in all fields. Based in London, UK. |
| Alan J Miller, Bookseller: Fine, rare, used and out-of-print books. Specialists in limited editions club, first editions, signed and inscribed books. |
| Alfearare Rare Books: Specializing in rare books, incunabula, manuscripts, old maps and printings; biligual, English and Italian. |
| Alibris: Used, hard-to-find, and new books. |
| All Vintage Bookstore: Online bookstore of vintage and collectable books. Specialties include children's books. |
| Alottabooks.com: Used, rare and out-of-print books. Based in Gloucester City, NJ. |
| Alsworth Book Corner: Used and out-of-print books. |
| Alternative Books: Used, rare, and out of print books on art, literature and the humanities; specialty is avant-garde and experimental works. Includes first and signed editions. |
| Ambrosia Books: Antiquarian and out of print books, specialist in biography, Australian history, women's interest, crime fiction and juvenile. |
| Anasazi Books: Used and collectible books. Romance and other fiction. |
| And Books Too: Used books; searchable and categorised. |
| AngelTigerLily's Used Books and CDs: Books include self-help, inspirational, childrens and biographies as well as spiritual, angels and religion. Rock, pop and classical CDs. |
| Anglophile Books: Secondhand books; specializing in British women authors, books for Anglophiles, and Women's studies and history. Also offers a book search. |
| Antic Hay Books: Used, rare and first edition fiction, poetry, drama and autographs. |
| Antiquariaat Colombine: Titles on Amsterdam, art, philosophy; also in Dutch. |
| Antiquariaat Vanhove: Used and antiquarian academic books. |
| Antiquarian Books's Cyberstore: A database holding the stock of a selected number of dealers; buy and sell antiquarian books. |
| Antiquarian Bookstore: Used, out-of-print, rare, and antiquarian books. |
| Antiquariat Daniel Good: Offers rare books, prints, engravings, and maps. Includes owner's profile. |
| Antiquariat Turszynski: Rare and valuable books from 16th to 19th century. Much of the site is in German, but English translation available for those areas. |
| Anton W. van Bekhoven: Books on art, architecture, art history bibliography and typography, history, philosophy, Middle Ages. Includes book lists and request form. |
| Any Amount Of Books: Rare books, first editions, modern literature, art, poetry, scholarly/academic books, antiquarian, leather bound sets, general stock. |
| Any Old Book: Specializes in used mystery, fiction, and nonfiction hardcovers. |
| Arca Books: Hard to find, out of print, used, and rare books on a variety of topics. |
| Argonaut Book Shop: California history and the American West. Other specialties include Pacific voyages, art, and Western private press books. |
| Asher Rare Books: Rare books and atlases, specialties include travel and botany. |
| AstroLogos Books: Reprints of hard-to-find and out-of-print books; facsimile editions of original titles in hardcover or softcover format. |
| Attic Books: Used and out-of-print books. Search by author, title or keyword. |
| Atticus: Used books and music. |
| Augustine Funnell Books: Collectible books and magazines, including mystery, horror, nonfiction, fiction, children's, Canadian. |
| Aussie Books: Australian books and out-of-print books, sorted by category and searchable. |
| Authors & Artists: Specializing in modern firsts, signed and limited editions, authors' early works, earth sciences, Native American, mythology and antiquarian. Includes company profile. |
| Azorabooks: Out-of-print book service. Including military and natural history titles. |
| The Antiquarian Shop: Specializing in rare and unusual antiquarian books, maps, and autographs in every field of interest. |
Classical
