Sikuquanshu is the largest collection in the history of China (followed by Yongle Grand Ceremony in Ming Dynasty). The compilation began in the thirty-eighth year of Qing Qianlong (1773) and took nine years to complete. * * * 3503 volumes, 79337 volumes, 36304 volumes, nearly 2.3 million pages, about 800 million words. The whole set of books contains most important ancient books (some of which are forbidden) from pre-Qin to early Qing Dynasty, covering almost all academic fields in ancient China.

Sikuquanshu means that the whole set of books is divided into four parts: classics, history, books and collections, with a total of 44 categories. It also includes The Analects of Confucius, Daxue, Mencius, The Doctrine of the Mean, Zhouyi, Zhou Li, Book of Rites, Book of Songs, Filial Piety, Shangshu, Chunqiu, Historical Records, Er Ya Zhu Shu and Shuowen Jiezi.

Not the integration of four books.