Actually many kinds of differences can be identified. Such as the price, convenience. For one thing, most of the e-books are nearly free of charge in my country. Those who are fine with e-books do not have to worry too much about its costs. 1 Yuan or such, you can find it anywhere, I mean, on the Internet. It can be very popular among young generation. For another, paper books are not that easy to carry or take, we have to put them in the bag or take it to somewhere, in my consideration, not that user-friendly. But seniors might love paper ones. Besides, 99% of paper books is made from wood, we have to do something one or two on environmental protection, undoubtedly. So, that is it.