At least one person per day asks how to sell their old or rare books. For these, Bookscouter.com is not able to provide vendors since there is no ISBN number associated with them. However we do provide alternate sources to find your books highest rated value.

Fadedgiant.net
Abebooks.com
Ebay.com
Rare Books and Manuscripts Section
Biblio.com
Antiquarian Booksellers’ Association of America