Stamping: Printing directly on books with special stamps.

India's signature board is considered to be a synthesis of two parts, namely, India's signature board and Gat's signature board. Special signature can be understood as special signature, that is, in addition to signing the author's name, the author can also be allowed to add a sentence or other content, and even sign to whom or stick figure. Stamping means that the version of the book is directly printed on the document, and there is a signed seal, which is different from autographing. For example, the author engraves his signature on the seal and seals it directly where it is needed. This kind of book or material is called bronzing.

Classification characteristics of signatures:

Personal signature is the author's personal signature, directly signing his own name, and special signature refers to special signature. Besides signing the author's name, the author can also write some words. First, it is necessary to determine whether the author is willing to give it and whether it can be specially signed. The number is limited, and the top number can receive the author's special signature. Secondly, the price of special signature is higher than that of personal signature. Signing in person means signing in person, and signing in person means that they signed one in person, and the rest were printed according to that.