No charge. The library is a state-owned unit, which provides free reading and learning places for people. In the library study room, you can charge your mobile phone and use your laptop for free, so there is no charge for reading in the library. A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared. Library has the functions of preserving human cultural heritage, developing information resources and participating in social education.