Adrian Harrington  
   Specialising in literature, modern first editions and bound library sets; fine and rare books in all fields. Based in London, UK.
   http://www.harringtonbooks.co.uk/

A. A. Wilson  
   English and American Literature, Modern First Editions, Reference, and Military History.
   http://www.geocities.com/advalorem_uk/

Alfearare Rare Books  
   Specializing in rare books, incunabula, manuscripts, old maps and printings; biligual, English and Italian.
   http://www.alfeararebooks.com/

Antic Hay Books  
   Used, rare and first edition fiction, poetry, drama and autographs.
   http://www.antichay.com/

Alsworth Book Corner  
   Used and out-of-print books.
   http://www.geocities.com/r_alsworth/abcornerhome.html

Anna Mae Steel  
   72 categories of books, mostly hardback non-fiction and collectible paper ephemera.
   http://www.bright.net/~amsbooks/

Aussie Books  
   Australian books and out-of-print books, sorted by category and searchable.
   http://www.aussiebooks.com.au/

Antiquariat Online Bookstore  
   Rare, out of print, antique and used books, maps, prints and postcards.
   http://www.rarebook.webcentral.com.au/

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.
   http://www.turszynski.de/

The Antiquarian Shop  
   Specializing in rare and unusual antiquarian books, maps, and autographs in every field of interest.
   http://theantiquarianshop.com/

Authors And Artists Books  
   Specializing in modern firsts, classic lit, signed and/or limited editions, author's early works, natural history, native american, and antiquarian.
   http://www.aaabooks.net/

Any Amount Of Books  
   Rare books, first editions, modern literature, art, poetry, scholarly/academic books, antiquarian, leather bound sets, general stock.
   http://www.anyamountofbooks.com/

Augustine Funnell Books  
   Collectible books and magazines, including mystery, horror, nonfiction, fiction, children's, Canadian.
   http://www.gusbooks.com/

AstroLogos Books  
   Reprints of hard-to-find and out-of-print books; facsimile editions of original titles in hardcover or softcover format.
   http://www.astrologos.org/

Alottabooks.com  
   Used, rare and out-of-print books. Based in Gloucester City, NJ.
   http://www.alottabooks.com/

Antiquarian Books's Cyberstore  
   A database holding the stock of a selected number of dealers; buy and sell antiquarian books.
   http://www.rarebooks.ch/

A-ha! Books  
   rare and out-of-print books, autographs and maps. Online catalogues and book search services.
   http://www.lightlink.com/tokman/

Any Old Book  
   Specializes in used mystery, fiction, and nonfiction hardcovers.
   http://www.anyoldbook.com/

Argonaut Book Shop  
   California history and the American West. Other specialties include Pacific voyages, art, and Western private press books.
   http://www.argonautbookshop.com/

A.B.Normal Books  
   Modern 1st edition and limited edition science fiction, fantasy, horror, related young adult and reference books.
   http://www.abnormalbooks.com/

Antiquariaat Colombine  
   Titles on Amsterdam, art, philosophy; also in Dutch.
   http://www.colombine.demon.nl/

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.
   http://www.alternativebks.com/

Attic Books  
   Used and out-of-print books. Search by author, title or keyword.
   http://www.atticbooks.net/

Azorabooks  
   Out-of-print book service. Including military and natural history titles.
   http://azorabooks.tripod.com/books/

AllOne Books  
   new and used books on many subjects, and a free book search.
   http://www.allonebooks.com/

Asher Rare Books  
   Rare books and atlases, specialties include travel and botany.
   http://www.asherbooks.com/

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.
   http://www.usedbooks-websitedesign.com/

All Vintage Bookstore  
   Online bookstore of vintage and collectable books. Specialties include children's books.
   http://allvintagebookstore.0catch.com/

Alice's Book Sales  
   Features novels by Grace Livingston Hill.
   http://www.geocities.com/alice_49646/

And Books Too  
   Used books; searchable and categorised.
   http://andbookstoo.com/

Anasazi Books  
   Used and collectible books. Romance and other fiction.
   http://anasazibooks.tripod.com/

Aidan kenny Books  
   Used paperback and hardback books; mostly fiction.
   http://homepage.ntlworld.ie/kennyz/

Antiquariat Daniel Good  
   Catalogues of rare books maps and prints.
   http://www.danielgood.ch/mainmenu.htm

Antiquarian Bookstore  
   Used, out-of-print, rare, and antiquarian books.
   http://www.antiquarianbookstore.com/

Alibris  
   Used, hard-to-find, and new books.
   http://www.alibris.com/

ANSJ Books  
   Used books in severalcategories; browse or search.
   http://www.amazon.com/shops/ansjbooks/

Atticus  
   Used books and music.
   http://www.atticusbooks.com/

Arca Books  
   Hard to find, out of print, used, and rare books on a variety of topics.
   http://www.arcabooks.com/

ABookLegacy  
   Mostly out of print non-fiction books; Americana, genealogy, history, military, and general subjects.
   http://www.ABookLegacy.com

Arkansas Barney's Books  
   Broad selection of used books
   http://www.arkansasbarneysbooks.com/

Anton W. van Bekhoven  
   Books on art, architecture, art history bibliography and typography, history, philosophy, Middle Ages. Includes book lists and request form.
   http://www.antonbooks.com/

Antiquariaat Vanhove  
   Used and antiquarian academic books.
   http://www.antiquariaat-vanhove.com/index_en.asp

Adams Used Books  
   Second-hand cross stitch patterns, books, and magazines including hard to find and out-of-print.
   http://www.adamsusedbooks.net/

Ambrosia Books  
   Antiquarian and out of print books, specialist in biography, Australian history, women's interest, crime fiction and juvenile.
   http://www.users.bigpond.com/ambrosia/

Alan J Miller, Bookseller  
   Fine, rare, used and out-of-print books. Specialists in limited editions club, first editions, signed and inscribed books.
   http://alansbooks.homestead.com/alansbooks.html

Anglophile Books  
   Secondhand books; specializing in British women authors, books for Anglophiles, and Women's studies and history. Also offers a book search.
   http://www.anglophilebooks.net/