(Sun Yudong is repairing ancient books.) In the Special Collection Department of Zhongshan Library in Guangdong Province, Sun Yudong, an ancient book restorer, sat in front of the workbench, focusing on the tweezers, patching paper and other tools and materials in his hands to repair a yellowed and damaged ancient book leaf, often sitting for a whole day. Over the past 10 years, Sun Yudong has restored nearly 10000 leaves of ancient books and documents, including more than 900 rare books, as well as more than 400 rubbings, calligraphy and painting. With his solid and excellent restoration skills, he won the third prize of the "National Ancient Books Restoration Skills Competition", and won the fourth "South Guangdong Technical Expert Award" in 2021 for his literature restoration work, becoming the only literature restorer in the province who won this honor. "The report of the 20th National Congress of the Communist Party of China pointed out that we should strengthen the protection of cultural relics and cultural heritage. As the 'guardian' of ancient books and relics, we should be aware of the responsibility and significance of this work!" Sun Yudong said that in recent years, with the increasing attention paid by the state to the protection of ancient books, more and more precious ancient books and documents have been repaired and protected, and the grass-roots ancient book repair team has grown gradually, creating conditions for the follow-up long-term protection of ancient books. Love?? In 2011, Sun Yudong graduated from the Cultural Relics Appreciation and Restoration Major of Nanjing Academy of Arts, and became an ancient book restorer of the Provincial Zhongshan Library. He participated in the protection and restoration of rare ancient books, ordinary ancient books, rubbings of steles, paintings and calligraphy, newspapers and other documents. The Provincial Zhongshan Library is a national key ancient book protection unit, a talent training base of the National Center for the Protection of Ancient Books, and a national ancient book restoration skills learning center in Guangdong. Since 2014, the museum has used the resources of the Provincial Ancient Books Protection Center to carry out various activities such as ancient books census, protection and restoration technology training classes, and has cultivated a team of ancient books protection professionals. Sun Yudong told the reporter that the scope of daily repair work covers documents that are seriously damaged and in urgent need of rescue, documents that are included in the department's current work plan, and documents that readers need to read. According to statistics, from 2006 to 2021, the Ancient Books and Documents Restoration Office repaired 125954 leaves of ancient books, 68751 leaves of Republic of China documents, 1036 rubbings, etc. Following the department's restoration plan, countless pieces of ancient books were "reborn" after they were transferred from Sun Yudong. In his opinion, the most important thing to be an ancient book restorer is to fear and love. Due to the long history, ancient books that have been changed and eroded by fire and water are often plagued by "diseases". In the humid and insect rich environment in the south, mildew and moth infestation are also likely to occur. He confessed that sometimes when he saw the dense insect eyes on the leaves of the book, he could not help being upset and "felt that it would never be finished". In his memory, what impressed him most was the restoration of an ancient book called Tongshu. After soaking in water, mildewing and flocculating, this ancient book in Daoguang period has become almost tightly glued into a paper block and cannot be opened. Sun Yudong used steam to separate the pasted book leaves one by one, and then spliced the damaged parts. It took nearly two months before and after the restoration of this ancient book with nearly 100 leaves. "If this ancient book is not urgently rescued, it