What do you mean by compiling classics?

The compilation and revision of classics refers to the compilation and revision of ancient literary classics. In ancient times, classics generally referred to Confucian classics and various books, covering works in the fields of philosophy, history and literature. Editing classics is an important cultural project, which involves not only the collection, collation and classification of ancient books, but also the collation and annotation of texts and the interpretation and annotation of contents. The compilation of classics is often carried out by scholars organized by the state, with the purpose of preserving cultural heritage, spreading academic ideas and standardizing social order. For example, Si Ku Quan Shu, edited by Emperor Qianlong in Qing Dynasty, is one of the largest books in ancient China, including classics, history, books and collections, with 3,462 kinds of books, reflecting a large-scale compilation of ancient documents at that time.