Imprint is a physical book published by the author with the author's autograph or blessing on it. Special sign refers to a special sign, which allows the author to write some words in addition to signing the author's name. Stamping is to customize the signature template and make a signature that can be stamped repeatedly.

Books are the main tools used by human beings to record all achievements. A book generally refers to a collection of paper bound into a book and printed with words. It is also an important medium for human beings to blend feelings, inherit knowledge and gain experience, which is of great significance to the development and inheritance of human civilization.