Download the EPUB instructions to use the OverDrive eBooks on your iPad or iPhone.
So let me openly acknowledge the counter-intuitive nature of downloading an eBook to learn how to use eBooks. <smile> The files listed here contain no DRM (Digital Rights Management) and can be easily opened using iBooks (or any other app that allows you to read DRM-free EPUB eBooks.)
These handouts are also available in PDF format from the "Getting Started with eBooks" page.
Reading OverDrive READ eBooks on an iPad
Reading EPUB eBooks on an iPad
Reading Kindle Books on an iPad
The links lead to Box.net, a file hosting site. Click the "Download" link on the Box.net website and select iBooks to open the file. The eBook will open in iBooks.