I have the same question/issue. I have over 3,000 books in Kindle format, and I'd like to be able to pull reference metadata (not the text) into Zotero, for all of these Kindle books. Better still, I would love to be able to import the books' specifics – Title, author, publisher, date, etc. and, in some ideal world, my highlights and notes. I know how to pull in info via the ISBN# – one ebook at a time. But I know that a piece of software could eliminate this formidable time sync. Any idea if someone (Amazon, 3rd parties, etc.) have made this possible?
Is there a some way of bulk importing all metadata for one's Kindle books without having to do it for each book individually ?