This post is based on a seminar presented to Surrey School District administrators on the use of the Evernote and iBooks apps. You may find it useful if you are a regular user of the iPad.
Please make sure that you have downloaded both apps from the app store. If you have already got these apps on your iPad, please make sure that they are both the latest version. Some features, such as changing the name of a document in iBooks, will only work with the current version of the app.
There is also an excellent app called OneNote, that will synchronize with Office applications such as Outlook.