A certain reward is an autograph, which is a kind of honorific for people to appreciate artistic works, such as calligraphy works, and it belongs to the courtesy or honorific words mentioned in the preceding paragraph.
It's the same reason that we are familiar with inviting someone to be elegant. They all have their own works, which means asking others to look at them and correcting them.
the signature is divided into "single paragraph" and "double paragraph". It is called "double paragraph" when both the donor name and the author's signature are signed, and it is called "single paragraph" when only the author's name is signed. Inscription, inscription, inscription on paintings, calligraphy, gifts, etc., the names, years, months or poems of the giver and receiver.
culture, in a broad sense, refers to the sum of the material and spiritual production capacity and the material and spiritual wealth created by human beings in the process of social practice. In a narrow sense, it refers to spiritual production capacity and spiritual products, including all forms of social consciousness: natural science, technical science and social ideology. Sometimes it refers to the knowledge and facilities in education, science, literature, art, health and sports.