Generally speaking, calligraphy works must have seals. On the one hand, it is proved that the author wrote it himself, on the other hand, it depends on the needs of the integrity and beauty of the work.

The paper of calligraphy works is white, the characters are black, and the seals are red, which can play an adjusting role. There are only two people in my impression of modern and contemporary calligraphy works: one is the great leader Mao Zedong, whose works are magnificent and heroic; The other is Xie Wuliang, a Sichuan calligrapher. Mr. Xie's works are exquisite and never need to be printed.

Calligraphy works without seals are far less valuable than those with seals.

The evaluation of the value of calligraphy works is a very delicate matter. No matter how big or small the calligraphy works are, as long as they are well-made and outstanding in style, the value is bound to be higher than that of ordinary coping works, and the value with more words is bound to be higher than that with fewer words. Those big characters, such as "shou" and "Dao", are still less valuable than their normal works.

For reference only!