Which calligrapher did Fang Zhe and Li Jun describe?

Fang Zhejun described the calligrapher Liu Gongquan. Liu Gongquan's calligraphy is famous for regular script, and he is as famous as Yan Zhenqing, who is called Yan Liu. Wang Xizhi, a beginner in calligraphy, later visited famous calligraphers in the Tang Dynasty and thought that Yan Zhenqing and his calligraphy were the best, so he absorbed the strengths of Yan and Ou, and formed his own Liu style between Jin people's charm and Yan style calligraphy, which was good at health.

Liu Gongquan is a summarizer and innovator of regular script. On the basis of learning and inheriting the regular script styles of Zhong You, Wang Xizhi and others, he read modern calligraphy, learned from Yan Zhenqing, absorbed his new ideas, and created his own unique "six-style" regular script, which was imitated by later generations and became one of the outstanding representatives of "Tang Shu Shang Fa".

His handwriting is even, thin and hard, and he pursues Wei Bei firmly. His stippling is crisp and beautiful, with thick bones and tight body. "Books are expensive, thin and hard, and the spirit is clear." Compared with his face, his regular script is slightly flat and thin, so it is called "Yan Gu".