1. seal script stage: it mainly appeared before the Qin dynasty unified the six countries, with slender characters, even strokes, symmetrical structure and simple and elegant artistic style. Seal script is not only the carrier of characters, but also an important form to convey historical and cultural connotations.
2. The official script stage, which originated in the Qin Dynasty and matured in the Han Dynasty, has the artistic characteristics of bold and unconstrained. Official script changed the writing style of seal script, which laid the foundation for the later development of calligraphy.
3. The regular script stage, which was formed in the Eastern Han Dynasty and prevailed in the Tang Dynasty, has a square font, standardized strokes, rigorous structure and dignified and beautiful artistic charm. Regular script is the peak of calligraphy art, which has a far-reaching influence on later generations and is an important basis for calligraphy learning and creation.