It includes thirteen Confucian classics and related works, including Yi, Shu, Poetry, Rites, Spring and Autumn, Filial Piety, Five Classics, Four Books, Music, Primary School, etc. 10 category.

2, history: history books, that is, official history.

Including official history, chronicle, miscellaneous history, other history, imperial edicts, biographies, historical notes, records, seasons, geography, official positions, political books, catalogues, historical reviews, etc. 15.

3. Zi: hundred schools of thought in Pre-Qin Dynasty.

Including Confucianism, military strategists, legalists, farmers, doctors, astronomical algorithms, mathematical technology, art, music records, miscellaneous books, novelists, Buddhists, Taoists, etc. 14 category.

4, set: selected books, that is, poetry collections.

Poetry anthologies and monographs include Chu Ci, Bieci, Anthology, Poetry Review and Ci Qu, among which Ci Qu also belongs to five genera: Anthology of Word Segmentation, Anthology of Ci, Hua Ci, Ci Pi and Yun, and Nanbei Qu.

Extended data:

Classic and History Subsets belong to four categories of ancient books in China. Some large-scale ancient books series often include four books and are named after them, such as Si Ku Quan Shu, Si Bian and Si Chu. , suitable for traditional cultural classics.

After the Han Dynasty, various ancient books compiled by the government and the people emerged continuously, and the classification methods were improved. In the Western Jin Dynasty, Xunxu's "Jinzhong Classic Book" was changed from six to four, namely, Part A recorded classic books (equivalent to six arts), Part B recorded volumes (including philosophers, military books, mathematics and folk arts), Part C recorded history books, and Part D recorded poetry and fu, which laid the foundation for the four books.

The final establishment of the four-part system is embodied in the Annals of Sui Shu Classics, which was actually compiled by Kevin·Z, a famous official in the early Tang Dynasty, and officially marked the names of the four parts of the Classics, History and Discipline, and further subdivided into 40 categories. After the Sui Dynasty, the mainstream of book classification is to follow the four-part classification.

All kinds of categories under the four departments have changed throughout the ages. The Catalogue of Sikuquanshu compiled in Qing Dynasty is divided into four parts and 44 categories, which is very authoritative.

Baidu Encyclopedia-a subset of classics and history