The restoration of ancient books has a long history. The dragon scale mounting technique existed in the Han and Tang Dynasties. In the Song Dynasty, with the development of printing, the restoration of ancient books began to flourish and gradually became a specialized skill. From the late Qing Dynasty to the Republic of China, the restoration of ancient books reached its peak, and there were many schools, including the Shanghai School, the Su School, the Yang School, the Beijing School, the Shu School, the Hui School, the Lingnan School, the Lu School, the Tianjin School, etc. Although there are some differences in the restoration techniques of each school, in general, the inheritance is roughly the same. The prosperity of the schools has also promoted the great development of the industry of ancient book restoration. The history of Ji's ancient book restoration can be traced back to the Guangxu period of the Qing Dynasty. It has a history of more than 120 years. It has created the Ji's paste production process and is good at using the "flying support method" to repair flocculent ancient books. The first-generation inheritor, Mr. Ji Kegong, was a scholar during the Guangxu period of the Qing Dynasty. The second-generation inheritor, Mr. Ji Yunzhang, was good at using rootless water and snow in the cold winter, supplemented by special Chinese medicinal materials handed down from generation to generation, and boiled with mulberry wood over a low fire. After making it, he dug a pit to store it to remove the fire and eliminate the explosiveness. The paper used by the Ji family for book repair was also very particular. All the ancient books he repaired were handmade paper, which was dyed with Chinese medicine. The paper was dyed as it was tested, so that the paper was simple and natural. To this day, there are still more than a hundred kinds of handmade paper of different origins, different textures, different colors, and different ages. The third-generation inheritor, Ji Hongmin, adhered to the art of ancient book restoration under difficult conditions. - On the basis of the original family-inherited paste production, the inheritor, Mr. Ji Yufang, innovatively added several specially selected Chinese medicinal materials, making the paste non-explosive, moderately sticky, long-lasting and non-corrosive, without odor, and better insect and moth-proofing effects. At present, the Ji family's ancient book restoration skills have been passed down for five generations, mainly distributed in Kaifeng, Henan, Hefei, Anhui, and Hangzhou, Zhejiang. Information source: Anhui Provincial Intangible Cultural Heritage Protection Center Information source: Anhui Provincial Intangible Cultural Heritage Protection Center