Go to Amazon.. look to the left and see the shop all departments column.
Click on kindle.
click on kindle 6 inch device.
It will take you to this screen
http://www.amazon.com/Kindle-Amazons...pf_rd_i=507846
Then click on Kindle books.
Shop.
Use the search filed to type in author or book.
Find book you want. (There's lotsa free ones try one of those first)
click on it.. (This doesnt buy it yet.)
click buy now with one click.
The site automatically charges the credit card you used to buy your Kindle and sends the book to your kindle in 60 seconds (or your Iphone if you have the kindle app...
Say, "Thats the coolest thing i've ever seen!"
Piece of cake!
Oh. In the Kindle store page (see link above) you can click on "Manage your Kindle" And change the credit card you want to use for the one click buying if you want, or change the name of yer Kindle to Ogilthorpe if you wanna or set your kindles email address etc.