Yan Zhenqing: Yan Zhenqing (709 ~ 785) was a calligrapher of the Tang Dynasty in China. Chen Qing, a native of Jingzhao Wannian (now Xi, Shaanxi), was originally from Linyi (now Linyi, Shandong). In the first year of Kaiyuan (7 13-74 1), he was promoted to Jinshi. Yan Zhenqing was studious and literate since childhood. His calligraphy was influenced by the Yin family and the ancestral family, and at the same time was guided by Zhang Xu. He also widely absorbed the nutrition of famous calligraphers such as Cai Yong, Wang Xizhi, Wang Xianzhi and Chu Suiliang. After a comprehensive study, he created an outstanding and magnificent unique style, called Yan Ti, and became a great calligrapher representing the Tang Dynasty. His calligraphy initiated the development history of calligraphy in China. Yan Zhenqing's regular script has a solemn and majestic style. His pen is horizontal and light, vertical and heavy, and his brushwork is vigorous. Structurally, it is square and dense. The vertical pen is slightly curved in the middle, soft and elastic in the middle, with heavy strokes and strong centrality, which adds to his magnificent, round and rich aesthetic feeling.

Liu Gongquan: Liu Gongquan (778-865), the last great calligrapher in the Tang Dynasty, was born in Yaoxian County, Shaanxi Province. He inherited the calligraphy structure of his predecessors and created the so-called "six-body", which was a model for later generations until he entered the printing age. His calligraphy incarnates thousands and spreads among the people and even abroad. His calligraphy was always valued in Tang Muzong, Jing Zong and Wenzong. He lived in the official residence, served books, grew up in the Forbidden City and had a successful career. Literati called his ci "Zhong Wang's resurrection is hard to see". Mu Zongdi asked him how to use a pen best. He said, "With a pen in your heart, your heart is regular." This famous saying was passed down by later generations as a story of "pen admonition" "Liu Ti" is as famous as "Yan Ti", also known as "Yan Liu Jin Gu".