[zvr]

Just a comment pointing people to https://www.librarything.com/ which I find so much better than goodreads.

Regarding the taxonomy of WEMI (work, expression, manifestation, and item), all of them are useful since we are talking about books at different levels. From "I have read Don Quixote", which is about the work (translations are the same), to "My Don Quixote has coffee stains", which is about the item.