Signatures are divided into "single segment" and "double segment". If both the donor's name and the author's signature are "double", it is called "single", and if only the author's name is signed, it is called "single". Inscriptions, inscriptions, paintings, calligraphy, gifts, etc. Name, year, month or poem of the giver and recipient.

1. Write your name, title, year and month on paintings, letters and gifts. 2. refers to the inscription.