My process for #BookWyrm is:
1. Search for the ISBN on OpenLibrary.org .
2. If it's not there,
2a) search for the book on search.worldcat.org,
2b) create a new book entry on #OpenLibrary , using the data from Worldcat,
2c) add the cover image from Amazon, other book sales platforms, or if necessary by making my own photo.
3) Import the book into BookWyrm, using its OpenLibrary ID.
I can do this pretty quickly, these days.