[teah10]

If someone sets out to build a Goodreads competitor, what's everyone's suggestion on how to aggregate book / ISBN / poster reference data? Google Books API comes to mind but I am wondering if there is a self-hosted solution.

[OldHand2018]

Sure, you can just download the OpenLibrary dataset:

https://openlibrary.org/developers/dumps

[klt39429]

woah this is great. Thank you!