What do you mean by "four calligraphy styles"?

China's calligraphy is customarily divided into four types: Zheng, Cao, Li and Zhuan.

Zhengshu refers not only to regular script, but also to Wei Bei. Its characteristics are: square shape, straight strokes, can be used as a model, hence the name.

Cursive script refers to the wild grass represented by Zhang Xu and Huai Su, and also refers to the big grass; It also refers to a cursive script that is more standardized than wild grass, which is called "Book Score" by Sun in the Tang Dynasty. In addition, there is an urgent official script called Cao Zhang. Between grass and grass is a running script.

Lishu came into being in the late Qin Dynasty and early Han Dynasty. At first, it was mainly used to copy official documents in order to be concise, and later it was also used to write inscriptions and cliff carvings.

Seal script is a general term for big seal script and small seal script. Dazhuan refers to Oracle Bone Inscriptions, Jinwen, Jinwen and Six Kingdoms, and retains the obvious features of ancient hieroglyphics. Xiao Zhuan, also known as "Qin Zhuan", is the common language of Qin State. After the unification of Qin Shihuang, they were collectively called "Xiao Zhuan", also known as "Qin Zhuan". The so-called seal script is actually an official script. It is a standardized common font for official documents.

Representing calligraphers' works respectively.

Regular script: Ou Yangxun's Inscription of Liquan in Jiucheng Palace, Yan Zhenqing's Magu Xiantan, and Liu Gongquan's Shence Army Monument.

Weibei's masterpiece is Zheng's Gongbei.

Cursive script: In addition to the above, there are the Seventeen Articles by Wang Xizhi, the works by Huang Tingjian and Mi Fei in the Song Dynasty, and the running scripts by Wen Zhiming, Zhu Yunming, Zhang Ruitu, Wang Duo and Xu Wei in the Ming Dynasty: Preface to Lanting Collection by Wang Xizhi, Manuscripts for Sacrificing a Nephew by Yan Zhenqing, Su Dongpo and Mi Fei.

Lishu: The descendants of Li Bei, Li Bei, and Li Bei, there were many outstanding calligraphers in the Ming and Qing Dynasties, such as Jin Nong, Yi Bingshou and How.

Seal script: mainly represented by Oracle Bone Inscriptions, the characters on bronzes, Li Si seal script, Tang Li seal script, modern Deng and Wu Changshuo.