What's the name of the person who fills in books in the library?

In the library, the staff who make up books are called ancient book restorers, who are responsible for restoring the ancient books collected by museums and other collection units, specializing in the restoration of ancient books.

Ancient book restorers need to have rigorous academic literacy, including professional identification ability of ancient books, pictures and other contents, as well as comprehensive knowledge of ancient culture, art and other fields.