What are the classification of calligraphy fonts? Oracle Bone Inscriptions, regular script, official script and running script.

Oracle Bone Inscriptions: Oracle Bone Inscriptions, also known as Wen Qi, Oracle Bone Inscriptions or tortoise shell bones, mainly refers to the characters carved on tortoise shell bones by the royal family in the late Shang Dynasty in China. It is the earliest known systematic writing form in China and East Asia. It inherits the original engraving and opens the bronze inscription, which is the key form of the development of Chinese characters. Modern and mature Chinese characters or standard regular script evolved from Oracle Bone Inscriptions. It is generally believed that Wang, an official and epigraphist in the late Qing Dynasty, discovered Oracle Bone Inscriptions from the Oracle Bone Inscriptions unearthed in Anyang, Henan Province in the 25th year of Guangxu (1899). Xiaotun Village in the northwest of Anyang City is the ruins of Yin Ruins and the capital of the late Shang Dynasty. Over the past century, more than 100,000 pieces of Oracle bones 10 have been unearthed in the local area through archaeological excavations. In addition, Oracle Bone Inscriptions also appeared in other parts of Henan and Shaanxi, from the late Shang Dynasty (about 1300 BC) to the Spring and Autumn Period.

Regular script: Regular script, also called modern script, original script, regular script, regular script or regular script, is a common handwritten font style in China's calligraphy. According to legend, Han Li was used by Wang Cizhong in the Eastern Han Dynasty, and it was a variant of official script. Its glyph is relatively straight and square, except for the tail of the official script stroke and the dovetail selection of the silkworm head, it is not flat writing, and its structure does not conform to the principle of "six scripts". In modern times, regular script is still the reference standard of China's calligraphy.

Official script: Official script is one of the eight major fonts in Qin Shu, and it is a common solemn font in Chinese characters. Its writing effect is slightly flat, horizontal drawing is long, straight drawing is short, and it is rectangular, paying attention to "silkworm head and goose tail" and "twists and turns". Lishu originated in the Qin Dynasty and was reportedly compiled by Cheng Miao, reaching its peak in the Eastern Han Dynasty. Calligraphy is known as "Han Li Tang Kai".

Running script: divided into running script and running script, it is a handwritten font of China's calligraphy, which is said to have been created by Liu Desheng in the Eastern Han Dynasty. Zhang Huaiguan's Shu Duan in the Tang Dynasty had this view on the source of running script: "Running script is just regular script (regular script), which is simple and popular, so it is called running script. Since the Jin Dynasty, most calligraphers have also worked as ICBC calligraphers, the most famous being Wang Xizhi and his Preface to Lanting.