E-book is short for electronic book. It isusually read on personal computers. Some mobile phones can also be used to reade-books.
Earlier e-books were written for a specific group of readers and wereabout only a few subjects. With the development of the internet, knowledge andanswers to a lot of questions mainly come from e-books. This is why the e-bookbusiness is increasing quickly.
E-books have many advantages. First, they save time. We don't need to goto a bookstore to buy books, besides, we can find the topic we want to knowabout on the Internet, and then we can quickly get many e-books on similartopics. Second, e-books save money. Some e-books cost a little money, and thereare millions of e-books on the Internet that we can get for free. Third, moretrees are saved because e-books don't need to be printed on paper. Fourth,e-books make reading more convenient. You can carry a whole library of hundredsof books with you in a small computer or any e-book reader without worryingabout their weight.
Bute-books have certain disadvantages. They need a personal computer or an e-bookreader and the information can be lost if itsfile format (文件格式) is not supported orchanged in the reader's computer.
However, e-books provide us with a new way of reading. That is good.