In the Eastern Han Dynasty, the bachelor was recruited to sort out ancient books in the library of Lantai or Dongguan Palace, and the doctor was called the school librarian (also known as the school librarian); Those who are lang are called school book lang. The Three Kingdoms Wei Dynasty set up the office of proofreader, and the secretary arranged all the ancient books collected in the palace. This has been the case since the Tang Dynasty. Don't say anything in the future.

The position of school bookkeeper

In the Tang Dynasty, the Secretary Province, Jixian Hall, Secretariat Bureau, Hong Wen Pavilion and Chongwen Pavilion all set up school bookkeepers. The servant was a grass-roots civil servant in the Tang Dynasty. His rank ranges from the low level of grade nine to the high level of grade nine. Although his rank is very low, his job requirements are very high. In addition to the official positions granted to male students, he is usually the best among scholars or "extraordinary talents".

Xueba belongs to the sequence of honest officials, with a leisurely position, rich salary, rapid promotion and bright future. He was regarded by the Tang people as "the best choice for a scholar to start a career", with high social status and recognition. "It is not a tribute to the highest position, nor a superb book sentence, nor a clean job."