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.
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.
The Antiquarian Shop - Specializing in rare and unusual antiquarian books, maps, and autographs in every field of interest.
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.
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.
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 specialising in new naturalists and natural history titles. Includes signed editions.