Running script is a kind of calligraphy between regular script and cursive script, which appeared in the late Eastern Han Dynasty. The name of the running script first appeared in Wei Heng's Four Books in the Western Jin Dynasty: Zhong (Yao) and Hu (Zhao) all studied calligraphy under Zhang Huaiguan's Shu Duan in the Tang Dynasty: "The calligrapher is like Liu Desheng. That is, the book is small and fake, and the affairs are simple and popular, so it is called a running account. "
Zhang Huaiguan also said in "On Books": "Husband's calligraphy is neither grass nor true, leaving the party and avoiding circles, and caring about seasonal Mencius. Those who are true are called true, and those who bring grass are called grass." In the Ming Dynasty, Feng Fang had a more vivid description in Ji Shu: "Write without stopping, write without engraving, gently turn and press again, like running water, without interruption, for business will last forever." Running script is popular and widely spread because of its unique artistic expression and wide practicability, such as flowing, fast writing, elegant and simple.
After the golden period of Wei and Jin Dynasties and the development period of Tang Dynasty, running script reached a new peak in Song Dynasty and gradually occupied the mainstream position in various calligraphy styles. Throughout the long history of calligraphy, the development of seal script, official script and regular script has ups and downs, while running script is immortal, which has always been a prominent study in calligraphy. Great calligraphers of past dynasties wrote a glorious history of running script development.