iBooks is a great, free, app available for all your iDevices. On older iPads it came pre-installed, this is not the case on newer iPads. You will need to go to the App Store and download it for free. You can store books or PDFs in iBooks. It's a great place to keep customer facing documents organized and available on the go. This video is shown using iOS 6, but it works the same in iOS 7. New video for iOS 7 coming soon!