Eternity Books
- Hard-to-find books in 30 categories; largely academic and non-fiction.
- http://www.eternity-books.com/

Elephant Books
- Search for out-of-print, rare, used, antiquarian books.
- http://www.elephantbooks.com/

Eureka Australiana Books
- Online, secondhand and hard-to-find Australiana book specialists.
- http://www.eurekabooks.com.au/

Eddie's Books
- Book exchange scheme.
- http://www.we-trade-books.com/

Edward Conroy Books
- Specializing in military history, Russian royalty, social and political sciences.
- http://edconroybooks.com/

Estate Sale: Book Collection
- Titles in numerous subject areas are being offered for sale as individual lots.
- http://www.journalone.com/estate/bk_index.html

Erasmushaus
- Rare books including early printing, art and architecture, history of science and ideas, music and fine bindings.
- http://www.erasmushaus.ch/

Elswhere.net
- Rare and out of print books; collectible toys and dolls. Located in Fremantle, Western Australia.
- http://www.elswhere.net/

Eyes of the Owl
- Used book dealer from the Lakes Region of New Hampshire, USA. Stock listed by title, author and topic.
- http://www.usedbqqks.com/

E. P. Waggener & Sons, Booksellers
- Used, rare, and out-of-print fiction and non-fiction titles, with a special emphasis on Kentucky authors, including local author Janice Holt Giles.
- http://www.epwbooks.com/