There are two kinds of seals: name seal and leisure seal. The name stamp is engraved with the author's name, or single surname, or alias, and is stamped under or next to his name. Depending on the size of the space on one or both sides, if the name is more than two-thirds of the longitudinal length, it can be stamped with seals on both sides. If the name is very low, there is no seal, and the space next to it is large, the left side of the name can be stamped. The content of leisure articles often entrusts the author's thoughts and opinions on art, which can help the audience understand the author's works. In fact, the leisure chapter is generally covered in the blank space on the right side of the line, also known as the "introduction chapter"; Cover the blank space after the title, also known as "foot stamp". The shapes of seals are square, round, oval or irregular, large and small. The size of the name stamp should be consistent with the font and book size of the work. Leisure articles can be slightly larger, but they should also be commensurate with the length and style of the book. In short, it should be coordinated with the composition and layout of the whole work. There are two kinds of printing: Zhu Wen and (there are also half-square Zhu Wen and half-square). Zhu Wen is a positive seal and a negative seal. According to the needs of layout, we usually use white articles in negative language.