I think the ebook is Leon, easy to carry, save a space, save money, not affected by reading site restrictions. Power is lasting, less damage to eyes, Internet, support format selection, lots of free books, buy the ebook genuine after than the original paper genuine ebook book at low prices 。

The most critical: environmental protection, reduce waste of paper I think the ebook isFraud, a entity, collect books hurts eyes of books and is as entity. PiracyThe price is more expensive, big screen no backlighting 。