1Have you ever used an e-Book reader?  2E-Book readers are excellent devices for students. 3These devices save students energy.  Before e-Book readers appeared, students had to carry around many heavy books.  However, e-Book readers are extremely lightweight.  Also, they are wireless, so students can use them anywhere.  4It is clear that e-Book readers can make students’ lives much easier.  If you haven’t got one, you should get one as soon as possible.