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Brief introduction to official script: Han Li? The solemn fonts commonly used in Chinese characters are slightly wider and flatter in writing effect, long in horizontal drawing and short in vertical drawing, rectangular in shape, and pay attention to "silkworm head and goose tail" and "twists and turns". Lishu originated in the Qin Dynasty and was compiled by Cheng Miao. It reached its peak in the Eastern Han Dynasty, which had a great influence on later calligraphy. Calligraphy is called "Tang Kai of Han Li".