As is known to all, when students graduate, most of their textbooks are still in good condition; however, those textbooks are often thrown away. This is a waste of resources. Therefore, some people hold that textbooks should be reused for several benefits. First and foremost, a considerable amount of waste will be avoided. One student's trash can become another student's treasure. Second, reusing textbooks will lead to a cut in expenses on textbooks. Third, less new textbooks and more second-hand textbooks mean that a great deal of natural resources will be saved. Lastly, pollution produced by paper mills will be reduced. In my view, reusing textbooks should be advocated because it can make our environment much better. Besides, students do not have to spend too much money on textbooks. What is more, reusing textbooks can help promote students' awareness of treasuring natural resources.