>We started mapping ISBNs two years ago with our scrape of ISBNdb. Since then, we have scraped many more metadata sources, such as Worldcat, Google Books, Goodreads, Libby, and more. A full list can be found on the “Datasets” and “Torrents” pages on Anna’s Archive. We now have by far the largest fully open, easily downloadable collection of book metadata (and thus ISBNs) in the world.
So, it your books would need to be present in one of the databases that Anna's Archive scraped, at the time they scraped it.
I have two self-published books with ISBNs. Neither of them has the details in the 1st place submission (I assume it won’t be in any other as well?).
One was published on Feb 23 and the other on Dec 24. I had hoped at least the older one would be there. Does anyone know why they are not?
The ISBNs:
- 9786500718836
- 9786501276830