In the history of calligraphy, he is the most accomplished and influential calligrapher after the two kings. His book was first learned in Zhang Xu's four years in the early Tang Dynasty. Later, they were widely collected and studied. After changing the ancient law, it became a solemn, square, simple and vigorous "face style", which had a great influence on later generations.
It is said that there are 138 kinds of his works. Regular script includes "Many Pagodas" and "The Story of Magu Xiantan", which is a very individual regular script. There are several cursive scripts, such as Sacrifice to My Nephew, Contention for Seats, Pei Jun Post and Confessions. Among them, offering sacrifices to nephews is the highest artistic realm in a very sad mood, and it is called "the second running script in the world".
He is honest, clean and honest, has a sense of justice, never condescends to the powerful, condescends to flatter, and is famous for his benevolence and righteousness. His loyal and glorious deeds throughout his life improved his position in calligraphy.
Representative works include Zhongxing Fu, Biography of Magu Fairy Altar, Painting Praise Monument, Guomiao Monument, Eight Guanting Courtesy, Monument, Mannuzi Book, Yanbei, etc. In his later years, the monument of Yan Jia Temple became more and more vigorous, calm and full of vigor.