How to use the audiobook player in OverDrive for iOS (iPhone/iPad/iPod touch)
Once you've borrowed and downloaded an audiobook in the OverDrive app, go to your app Bookshelf, then tap the audiobook to start listening.
How to use the audiobook player:

Audiobook player options (based on the numbered image above) include:
- Home menu (includes a link to your Bookshelf, your library list, and app settings)
- Add a bookmark
- Title menu (includes an overview, table of contents, and saved bookmarks)
- Sleep timer
- Play speed