Bian Xiao is a librarian. I have observed some people who stay in the library every day. There are probably the following categories: 1, student groups, and postgraduate entrance examinations account for the majority. It also includes people who prepare for exams in the library. 2, the elderly group, now living well, retiring early, reading newspapers in the library is also a good pastime. 3. Some migrant workers will come to the library if they have not found a job for the time being or look up some information. 4. Someone took a fancy to the environment and network of the library and came to the library. Personal judgment, hehe.