The number of E-books is constantly on the rise as a result of the rapid development of information technology．It is thought by some
people that E-books might replace traditional books in some time because of various advantages of E-books over paper ones．

A great variety of reasons are held by people with the above viewpoint in which economy is the key factor to make such prediction
attainable．To start with．since all E-books could be downloaded from the internet， are free of charge, whereas paper books in book stores are relatively expensive．Besides, the popularity of E-books could reduce or even avoid the waste of paper．Finally．E-books can be easily stored in our computer or other portable disks while paper books usually occupy too much space on our shelves．

In short，E-books have  and more popular in our daily life．As long as we can ensure the safety of E-books，we can enjoy a better life．