2. Mounting, also called ancient mounting. Some people think that there are thread-bound books for sale in the book market in Han Dynasty. In fact, there was a book market in the Han Dynasty, but there were no thread-bound books.

The ancient paper books in China experienced two stages: scroll and album. The reel consists of coils, shafts, ribbons and belts. There were only books in this scroll form in the Han and Tang Dynasties. Today, we see scroll paintings hanging on the wall, or the legacy of scroll mounting. After the late Tang Dynasty, scroll books were transformed into album books, and their binding methods evolved into various ways, such as light folding, whirlwind, butterfly, and northern packing. It was not until the Ming Dynasty that the thread-bound book officially appeared.

Although paper was invented in the Han Dynasty, bamboo was still the main writing material at that time, followed by silk. Writing books on paper, from the perspective of literature records and archaeological discoveries, does not have sufficient evidence to show that it was popularized in the Han Dynasty (especially in the Western Han Dynasty).

Thread-bound books appeared in Baobeizhuang in the middle of Ming Dynasty in14th century. This is the first time in the history of China binding technology that scattered pages are gathered together and bound into a book by splicing. Its appearance marks that our country's binding technology has entered a new stage.

Thread-bound book is the last stage of the development of ancient book binding in China.