Valid sources for book data

[Susy]

As Dutch sources for book data I see a Belgian library link but not to Dutch libraries like onlinebibliotheek.nl and oba.nl

Also I’m missing Storytel Publishing as a source for book data, especially for the originals it’s the only source of information as they’re the publishers and they’re not available from libraries. The publishing website (which doesn’t contain specific book data) refers to the original/regular Storytel website.

Can these be added as a valid source for book data and covers?

[Javier]

Storytel is a subscription-only site, so we cannot add items from there.
See: https://help.goodreads.com/s/article/...
"Stories or books only available via subscription to a newsletter, or via a website that requires registration"

[Renske]

As listed at the top of the page with acceptable sources, national libraries are valid sources. And bibliotheek.nl and onlinebibliotheek.nl are websites from the Dutch national library.

The information per country/language on that page isn't well organised. It was created many years ago for an urgent situation at that time and therefore wasn't collected in a structured manner. And it has never been updated to fix that.