Tang Dynasty calligrapher? What is the masterpiece of? People compare him with another famous calligrapher? Also said, use? To describe their words

Yan Zhenqing, a calligrapher in the Tang Dynasty, has two masterpieces: Diligence Monument and Duobaota Monument. People refer to him and another famous calligrapher, Liu Gongquan, as "Yan Liu" and use "Yan Gu" to describe their writing.

There are also Su Shi, Huang Tingjian, Mi Fei and Cai Xiang (originally Cai Jing, because of his insatiable control of the Chaogang, which did great harm to the Song Dynasty, and was later replaced by Cai Xiang), and they are also called "Su Huang Camouflage", and their representative works include Poems of Song Fengge and Lisao Jing.

Wang Xizhi and Wang Xianzhi in the Jin Dynasty were both called "two kings", and their representative works included Preface to Lanting, On Yue Yi and Twenty-nine Posts.