Nice to "leaf through" the l'e-book

The e-book is a delight and it is demonstrated by Kindle sales, the e-book reader by Amazon.com. According to the Seattle (USA) company, in one month the sales tripled since the company decided to lower the price. The e-book has exceeded the sales of bound books, even though this sector still grows. In the last month 180 Kindle e-books each 100 "traditional" ones have been sold.