In this Kindle howto guide, I'll go through exactly where and how to buy Kindle books, with pictures to follow along with. This guide focuses on books downloaded from Smashwords, but the information is equally relevant no matter where you're getting them.To purchase Kindle books, you can select the device or app you want the book sent to in the deliver to: drop-down. Amazon states quite clearly that you cannot turn off 1-Click ordering for Kindle books. It's very intentional. Go to Your Account then click on manage digital content. You will then see a list of all the books you have bought or downloaded for your Kindle. Learning how to use Kindle is easier than you think. In our guide we'll cover the most important gestures and settings you should know. Welcome to your new Kindle Paperwhite.