What kind of book form is called China Book?

Thread-bound book is one of the binding forms of ancient books in China, which appeared after the invention of paper and prevailed in Song, Yuan, Ming and Qing Dynasties. Thread-bound books refer to books bound with thread, and its binding method has a long history in China.

Thread-bound books have complex processing flow, high technological requirements and exquisite materials, so thread-bound books have always been regarded as the representative of traditional books in China. Thread-bound book is not only a book binding form, but also a unique cultural symbol, bearing the essence of China ancient culture and historical memory.