Where are Kindle books stored on MacOs sonoma?

I was looking for when my PDFs are in my Kindle Library and am still on the hunt but I found this which might answer your e-book question: https://www.epubor.com/where-are-kindle-books-stored-on-pcmacandroid.html#p2 It depends on if you have Kindle Classic or the updated Kindle app and also look at both of the storage paths and you might find it under a hybrid of both. I had Kindle Classic and updated to the new app and so my ebooks were located with a hybrid of the two paths together of those listed at the link.

If you don't get an answer here (this forum is for the Apple Books app), try the support forum for the Kindle app.

https://www.amazonforum.com/s/kindle-reading-apps

Tried Epubor but it requires you to have an old version of the Kindle app that doesn't run on macOS Sonoma.