From the picture, we can learn that the numbers of people who buy e-books and online books are rising, while the number of people who buy books in store is decreasing between 2009 and 2013, and then keeps increasing since 2013. Besides, we can also learn that before 2008, the majority of students still prefer to buy books in store .But after 2008, compared with the number of students buying books online, the number of students preferring the offline store is much lower, nearly half of the numbers of others. Among them, e-book purchases grew fastest and seem will maintain its momentum in the following years. It is now the most popular type of books among students. Regardless of the changes in the way students buy books, it is always a good thing for students to buy and read more books.

图片主要给出了2005年到2015年学生购书渠道的变化情况， 主要分为电子书、 网络购书和实体书店购书三种渠道。 可以按照时间顺序， 首先介绍电子书和网络购书人数激增， 而实体书店一度受到冷遇， 但2013年后重新受到欢迎。 再比较介绍三种购书方式的总体情况。 作文末尾指出不管学生的购书方式产生了什么变化， 能多买书多读书总是一件好事。