This is a cool idea. It motivated me to stash a list of the books I've listened to on Audible. I wrote a blog post that has a JS snippet you can run against the Audible webapp, which makes it easier to get the list of titles (it just parses the DOM and gives you a plain text version).
https://blog.techotom.com/post/2022-05-07-get-your-audible-b...