Official script is also called "official script" and "ancient script", which is based on seal script. Official script is a font based on seal script to meet the needs of convenient writing. From the perspective of the history of calligraphy style, official script is a major turning point in the evolution of calligraphy style, and also a great progress in the history of calligraphy in China.
Lishu is characterized by a slightly wide and flat writing effect, a long horizontal painting, a short vertical painting, and a rectangular shape, with emphasis on "silkworm head and goose tail" and "twists and turns". Its use of pen, get rid of the monotonous bondage of seal script pen, showing a clear wave, simple and strong, natural and unrestrained style characteristics.
One of the official script stickers: "Cao Quanbei" is smooth and unrestrained. Mainly round pen, the shape is mostly horizontal, with a long and square knot between them, which is smooth in horizontal opening and subtle and steady in vertical opening. The combination of rigidity and softness, static and dynamic, straight and straight harmony, light and heavy harmony, and rich lifting and pressing make the whole structure elegant.