The ultimate app for iOS devices, period

The iPad is a great device, not very very friendly when trying to add files that are not part of the Apple world, such as books from your PC. GoodReader makes adding books to the Ipad easy. You do need to convert books from ePub to PDF format though, but there are many converters out there to do this easily.

Used2b3 about GoodReader PDF Editor & Viewer, v4.11.0