The seal used in calligraphy works is mainly the name seal-a seal engraved with one's own name, which can also be stamped with the name seal or printed casually. The content of the leisure chapter is generally a famous sentence or sentence that reflects personal interests, and it is often used as an opening or corner chapter in works. The size of the seal is generally required to be slightly smaller than that of calligraphy, and the number used depends on the requirements of the rules. (Original from: Children's Calligraphy Examination)