Value of old books

[Lobo Baggins]

Quick question - does anyone know of a website that gives reliable details about the value of old books?

I've recently obtained a first English edition of Asterix the Gaul and was wondering if it was worth eBaying...

[Wake]

Your best bet is to search for it or similar books on eBay (especially in completed auctions).

[Rog69]

Try looking on Amazon marketplace too.

[Mattofthespurs]

You'll want to try here as well.

http://www.abebooks.com/servlet/SearchEntry?tn=BY&sortby=17&sts=t&errorcode=2&bx=off&bi=0&fe=on&ds=30

[James Stacey]

Abe books is the place to go. Amazon marketplace often has massivly inflated prices on books.