delete an audiobook that I am finished with

Hi darlafromwaconia,

To delete an audiobook that you purchased from the iTunes store from your iPad, follow the directions in this article -

How to delete content you've downloaded from the iTunes Store, App Store, iBooks Store, or Mac App Store

Specifically -

iPad

Before you delete, back up the audiobook. You will need to purchase it again if you want to download it.

1. Tap the Music app.
2. Tap More.
3. Tap Audiobooks.
4. Tap and hold the audiobook you want to delete.
5. Tap the X that appears.

Thanks for using Apple Support Communities.

Best,

Brett L