What are the three styles of Yan Zhenqing's calligraphy? And what are the representative works?

Yan Zhenqing (709-785) was a minister and calligrapher in the Tang Dynasty. Jingzhao Wannian (now Xi 'an, Shaanxi) was born with a clear word. Kaiyuan Jinshi, an official who served as an adviser in the temple, was reprimanded by Yang and demoted to plain order. During the Anshi Rebellion, both the river and the moon fell, and the independent plain remained unchanged. During the period of Dezong, Li Xilie rebelled, and Qilu, who had the right to rape Qilu, persuaded Dezong Zhenqing to hang himself for Li Xilie with the tactic of impeded people. Calligraphy is dignified and majestic, and its momentum is open, so it is called "Yan Ti". There are all kinds of "Yan Lu Gong Ji" and inscriptions.

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, it was widely collected and learned, changed the ancient method, opposed the calligraphy style of the early Tang Dynasty, and used the pen of seal script to make it thin and hard, with a broad structure and magnificent momentum. This style also embodies the style of the prosperous Tang Dynasty and conforms to his noble personality, which is the beauty of calligraphy. His calligraphy style is called "Yan Ti", which is also called "Yan Liu" with Liu Gongquan, and has the reputation of "Yan Liu Jin Gu". It is said that there are 138 kinds of his works. Regular script includes "Many Pagodas and Monuments" and "The Story of Magu Xiantan". Among them, it is very personalized, such as "Jing Qing presses the sword, Fan Kuai holds the shield, King Kong looks at his eyes, and Lux punches." 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". Mi Fei's Book History: "The book of seats is very powerful, and it is the first of Yan's books. The characters are connected, flying strangely and unexpectedly."