  |
Oak Knoll Books - http://www.oakknoll.com/
Specialists in Books About Books; out-of-print books about book collecting, book history and the book arts; publisher, distributor, and bookseller. |
| |
Olof Edlund - http://www.edlund-books.com/
Antiquarian and rare books and manuscripts in all fields. |
| |
Old Books - http://www.oldbooks.net/
A general antiquarian shop with as first printings of literature and children's books, 19th and early 20th century scientific and other periodicals. |
| |
Owl at the Bridge - http://www.owlbridge.com/
Scholarly, rare and unusual out-of-print books. Primary interests are Italian history and culture and American industrial silver. |
| |
Oasis Used and Antiquarian Book Search - http://www.bookreader.org/
Buys and sells all type of fine used books, scholarly, history, technical, art, science, and fiction. |
| |
OldBookShop.Com - http://www.oldbookshop.com/
Used, out of print, and rare hardback books. |
| |
On the Shelf - http://www.ontheshelfbooks.com/
Buys, sells and trade used books in all genres. Includes comic books, collectibles, series and first editions. |
| |
Observermart - http://www.observermart.co.uk/
Specialises in Observer's Pocket Books published in the UK by Frederick Warne. |
| |
O and I Books - http://www.oibooks.com/home.html
Second-hand bookstore. Specializing in English and Spanish rare, hard to find antique 1876-1997 books. |
 |
Olde South Books - http://www.oldesouth.net/
Used and rare books, including medical, genealogy, fiction, biography, and religion. |