1. Because the library has the social function of developing intellectual resources, I guess the librarians in Guo Tu will sort the information flow to reduce the information annihilation caused by the massive social literature information. So it is possible to clean up paper books.

2. At the same time, in order to improve the utilization rate of the collection documents and solve the contradiction between the rapid growth of the collection and the lack of space in the stacks, China has established a collection storage system to store the sluggish books and periodicals in various libraries, or the literature varieties with extremely low circulation rate but still have certain reference value.

The so-called public book refers to a work whose copyright property right is not protected by copyright law. After China and China joined universal copyright convention in 1992, they began to pay attention to the protection of copyright of works at home and abroad, and the public book system came into being. According to China's Copyright Law, 50 years after a writer's death, his works enter public copyright, and publishers no longer need to obtain the consent of the author and his family and pay copyright fees.

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