One of the big announcements at Apple's Education event was iBooks Author, a Mac application for creating books and textbooks for iBooks. I could that say I spent a better part of the day experimenting and learning how to use iBooks Author, but that'd be a lie. I spent more time typing out content then I did learning how to use the app.
After creating your book, it is incredibly easy to see how it looks on your iPad. Simply plug in your iPad, open iBooks, then click Preview in iBooks Author. The app immediately starts exporting your book and, boom, appears on your iPad. When you close everything down and unplug your iPad, your book will still be accessible in iBooks so that you can take a closer look at it from the comfort of your couch.
I never imagined that creating this type of content would be so easy - and free.