The classification of historical classics originated from Liu Xiang and Liu Xin's Seven Views. The Seven Laws were lost as early as the Tang Dynasty, but the contents of the Seven Laws were basically preserved when Ban Gu compiled Han Shu Yi Wen Zhi. The Seven Volumes of Qilve is a brief introduction of Liu Xin's Bielu to his father Liu Xiang. It not only reflected all the books in the country at that time, but also reflected the academic schools at that time. The "seven views" are compilation, six arts, hundred schools of thought, poetry and fu, art of war, mathematics and technology. In order to explain the academic system of group books, according to the nature of books, they are divided into six categories except editing; There are thirty-eight kinds (subcategories) under the six strategies; There are 603 families, including the following books, totaling 132 19 volumes.
Bibliography has a long history During the Han, Wei and Six Dynasties, the compilation and research of catalogues formed a science, which was then called "the study of circulation". During the Tang and Song Dynasties, with the development of bibliography practice, a systematic theoretical study of bibliography began. Preface to Sui Shu Classics, Preface to Ancient and Modern Books and Revision of General Records are important theoretical works of bibliography in this period, which reflect the theoretical level of bibliography in Tang and Song Dynasties. The appearance of the word "Bibliography" in the documents of the Northern Song Dynasty shows that this discipline has been paid attention to by scholars at that time and has had a certain influence in the academic circles.
The Qing Dynasty was a prosperous period for the development of bibliography in China, with more and more kinds of bibliographies and more perfect styles. Bibliography, as a portal of reading and a tool of academic research, has been paid attention to by the whole academic community, and has formed a proofreading catalogue school with textual research as its main content and text as its main content. The edition catalogue school, which focuses on identifying old periodicals and choosing their authenticity, and the catalogue school, which aims at "distinguishing chapters and studying the origin of mirrors", focus on discussing bibliographic examples.