Setting Up AudioBookShelf
I have been an audible member for years at this point and in that time I have “bought” hundreds of books. I write “bought” because I payed for a Platinum account for years and got credits and got the books with those credits. Over the years I have collected more books than I can read in a year.
That library lived in the cloud, rather than my devices, for years. I would download the books I was listening to but not those that I had finished, or would read later.