Hardcover Books Will Now Be Forgotten, Thanks to Your Kindle 3.16K Brian Moylan 07/19/10 04:37PM Filed to: Technology Technology Kindle Books Amazon e-Reader e-Books Amazon.com reports that, for the past three months, sales of e-books for their Kindle device have outpaced sales of hardcover books. They sold 143 Kindle downloads for every 100 hardcover. Yeah, but can you use a Kindle as a doorstop?