How to Find and Buy E-books for iPad
Before you can read books or other publications, you have to get your iPad's hands on them (so to speak). This involves downloading e-reader software, and then using it or online stores to buy publications. Check out iBooks, a free e-reader that you can download from iTunes.
You can also buy content on your computer and sync your purchases to your iPad using iTunes or iCloud.
If you have set up an account with iTunes, you can buy books at the iBooks Store easily using the iBooks app. To buy a book, follow these steps:
When you find a book in the iBooks Store that you want to buy, tap it, and then tap its price button as shown in this figure.
The button changes to a Buy Book button, as shown in this figure. (If the book is free, these buttons are labeled Free and Get Book, respectively.)
Tap the Buy Book (or Get Book) button.
If you haven't already signed in, the iTunes Password dialog appears.
Enter your password and tap OK.
The book appears on your bookshelf, and the cost is charged to whichever payment method you specified when you opened your iTunes account — or the cost is deducted from your store credit, if you have a balance.
If you have signed in, your purchase is accepted immediately — no returns are allowed, so tap carefully!