Ancient books refer to books that are not printed by modern printing technology. In ancient times, books were called classics, also called documents, which had three meanings: documents, archives and books.

With the passage of time, the chronicle files are sorted out for people to read, so as to spread knowledge and experience and form a book. The content of the book is increasing day by day, the carrier tends to be single, and the production technology is constantly improving. In order to facilitate reading, different binding styles such as "simplified book", "scroll", "album" and "thread-bound book" have been produced.