I have an amazon kindle and I prefer e books over hardback, do you?
I have an e-reader like the Amazon Kindle, but I much prefer hardback books. 
Amazon Kindle has a daily deal and offers a couple of e books in each genre free every day
I recently learned that Kindle has nearly 5.9 million e-books available in the USA!
Amazon Kindle has an awesome selection of e-books and very reasonably priced as well
Amazon.com CEO Jeff Bezos made his employees build the worlds best e-reader before Amazon's competitors could. Looks like he was very successful.
I agree I imagine Amazon has made a fortune selling Kindles, I know I have bought a dozen or so as gifts over the years
with Kindle Store content, and as of March 2018, the store has over six million e-books available in the United States.
Naming and evolution.
In 2004, Amazon founder and CEO Jeff Bezos instructed the company's employees to build Earth's best e-reader before Amazon's competitors could. Amazon originally used the codename "Fiona" for this e-reader.
The "Kindle" name was devised by branding consultants Michael Cronan and Karin Hibma. Lab126 asked them to name the product, so
, or e-books, had limited success in the early years, and readers were resistant at the outset, the demand for books in this format has grown dramatically, primarily because of the popularity of e-reader devices and as the number of available titles in this format has increased. Since the Amazon Kindle was released in 2007, the e-book has become a digital phenomenon and many theorize that it will take over hardback and paper books in future. E-books are much more accessible and easier to buy