The cursive script in the Tang Dynasty was most valued by later generations in two stages: the inheritance stage in the early Tang Dynasty, represented by Sun; In the prosperous Tang Dynasty, Zhang Xu, the sage of grass, and later Huai Su were the representatives.
In the early Tang Dynasty, Jicheng Sun's masterpiece was not only calligraphy theory's works, but also a model of cursive script.
The most respected cursive scripts in Tang Dynasty are Zhang Xu and Huai Su in the prosperous Tang Dynasty. It is no exaggeration to say that they are the pinnacle of cursive scripts in China.
Zhang Xu is famous for its cursive script. At that time, he thought that dancing with Li Bai's poems and Pei Minzhi's sword was called "Three Musts". The Eight Immortals with Li Bai, He and others.
Huai Su's cursive script is thin and vigorous, flying naturally, like a whirlwind of showers. Although his calligraphy is capricious and ever-changing, it has statutes. Huai Su and Zhang Xu formed two peaks of calligraphy in Tang Dynasty, and also two peaks in the history of cursive script in China.