Liu Gongquan is a summarizer and innovator of regular script. On the basis of learning and inheriting the regular script styles of Zhong You and Wang Xizhi, he read modern calligraphy, learned from Yan Zhenqing, absorbed his new ideas and created his own unique "six-style" regular script.
His regular script, written by Fiona Fang, is angular and exquisitely structured. Compared with the face, it is slightly even and thin, so it is called "Yan Gu".
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Calligraphy in the late Tang Dynasty experienced prosperity in the middle of the prosperous Tang Dynasty, but it also reached its peak and declined. Although Liu Gongquan's fame was popular for a while, he was still slightly better than Yan Shu. Calligraphy flourished in the Tang Dynasty, but now it has declined.
Liu Gongquan's regular script involves Ou Yangxun's brushwork, and some strokes are often closely interspersed, which is particularly broad, fine and angular. Although the pen was written by Yan Zhenqing, it is different from Yan Zhenqing's vigorous and broad style, which is particularly heroic.
Today, the first choice for people to learn calligraphy is still Yan, Liu, Ou, Chu, Yu and other calligraphers in the Tang Dynasty, especially a set of regular script norms founded by Liu Gongquan, which is still an example for people to learn.
Liu Gongquan made outstanding contributions to the reform and development of calligraphy art, summed up the development of calligraphy in the Tang Dynasty, and laid the foundation for the overall development of regular script.
Baidu Encyclopedia-Liu Gongquan