Librarians are professionals in charge of library operation, including a whole set of processes such as purchasing, processing, description, circulation (borrowing), analyzing reports and serving readers. School librarians also undertake the educational function for readers, guide readers to find and use academic literature resources, and guide readers to study or study.

Library staff mainly need three types of professionals:

One is graduates majoring in library science and information science;

The second category is graduates majoring in computer science;

The third category is graduates or experienced people with higher professional qualifications who are proficient in the distribution and retrieval of literature resources.

These three belong to any category and can meet the conditions of working in the library.