1. Usually a name stamp is essential for a work. That is to say, there are seals such as the author's surname, first name, or nickname, etc. These seals are stamped at the end of the signature to indicate the source of the work. Usually there is only one stamp, "someone's seal", "so-and-so", or just a first name without a surname, or a pen name. In short, there is usually only one stamp. There are also people with one surname and one first name, but they are rare.
2. Works of some standards will use idle chapters, that is, chapters that are not for identifying the author's identity, but for layout decoration. For example, the opening chapter is usually placed in the upper left corner of the work as a decoration of the overall layout to break the rigid structure of the work that is too serious. When you first start learning, just a name stamp is enough. Once you have reached a certain level, you can learn how to stamp a casual stamp.
3. The seal on the calligraphy work is an indispensable part of the calligraphy work. Without the seal, it will not become a complete calligraphy work. The seal was originally a token of trust and served as a confirmation. After the Song and Yuan Dynasties, due to the emphasis on calligraphy, painting, inscriptions and signatures, calligraphers gradually realized the artistic role of seals and paid attention to playing this role in calligraphy works, so that the art of combining calligraphy and seal was formed.