I do not know how to return a digital book from an app I downloaded it to and need help.
The good news is that library eBooks automatically return themseleves at the end of the lending period. If you are using the OverDrive app on a smartphone or tablet you will have the option to return the book in your bookshelf by tapping on the title and holding down untill the option appears.
If you are using the Adobe Digital Editions software on a computer here are instructions on doing this: http://help.overdrive.com/customer/portal/articles/1481131-how-to-return-ebooks-using-adobe-digital-editions.
If you need further help please call the Tech Desk at 847-663-6606 for more assistance.