A Kindle is a small hand-held electronic device for reading books, which has been developed by online retailer Amazon. Rather as you download an iPod or MP3 player with music, you download books (via wireless technology) on to a Kindle and read them on it.
Just so, is Kindle for free?
Turn your phone or tablet into a book with the free Kindle app—so you can read anytime, anywhere. … Breeze through words you don’t know and characters you can’t remember with the built-in dictionary, X-Ray, Wikipedia lookup, instant translations, and search within your book.