Yan Zhenqing Tang Zhongzong Jinglong three years (AD 709)-Tang Dezong Zhenyuan first year (AD 785), 77 years old, Langxie Linyi (Shandong Linyi) people. This word is clear. He is a representative figure of calligraphy innovation in the middle Tang Dynasty, and his regular script is dignified and majestic, with an open momentum. Running script is easy and colorful. His calligraphy is not only influenced by the charm and charm in the previous style of calligraphy, but also not bound by the ancient law. It breaks through the conventions of the early Tang Dynasty and is unique and named "quiver". Song Ouyang Xiu commented: "Thinking about life is loyal, so calligraphy and painting are strong and independent, and they don't attack the past. They are quite magical, a bit like people. In the Song Dynasty, Zhu listed his calligraphy as a sacred product in "Continued Book Break". " He also commented: "The point is like a falling stone, the painting is like Xia Yun, the hook is like gold, and the bow is like a crossbow. There are images in both vertical and horizontal directions, and there is a low posture. Since the dedication, no one has said it. "