A million free covers for your library or bookstore

LibraryThing propose ses couvertures de livres (~1 million).
Il faut détenir une "LibraryThing Developer Key".

On le sait, Amazon offre aussi ce service. Voici la position de LT sur le sujet:
"This service "competes" with Amazons cover service, now part of Amazon Web Services. Amazon's service is, quite simply, better. They have far more covers, and no limit on the number of requests. By changing the URL you can do amazing things to Amazon covers.
The catch is that Amazon's Terms of Service require a link-back. If you're trying to make money from Amazon Affiliates, this is a good thing. But libraries and small bookstores have been understandably wary about linking to Amazon. Recent changes in Amazon's Terms of Service have deepened this worry."