Whose work is the very famous running script circulating in ancient China?

A very famous running script in ancient China is Preface to Lanting written by Wang Xizhi, a calligrapher in the Eastern Jin Dynasty.

Mysterious pagoda monument

Liu Gongquan's mysterious pagoda: regular script. The first year of Tang Huichang (AD 84 1 year) was established in February, and the original monument is now Xi 'an stele forest in Shaanxi. This monument is the most famous book handed down from generation to generation. It is one of the most influential models in regular script.

Monument to the Shence Army: In regular script, it was erected in the third year of Tang Huichang (AD 843). It is one of Liu Gongquan's representative works. Compared with Mysterious Tower Monument, which was widely known later, it is more distinctive in style, smooth and even in structure, tight in left and comfortable in right, and also a good model for temporary writing.