What is the position of Jinnong's calligraphy in history?

To sum up, Jin Nong's calligraphy has two characteristics: one is regular script; One is official script, and these two styles of calligraphy and Jin Nong are collectively called "lacquer calligraphy", which is a variant calligraphy that integrates regular script and official script. The former (running script) is quite similar to Zheng Changyou's Longmen statue and steamed stuffed bun monument, with sharp and heavy pen, compact structure and oblique posture. This kind of regular script, as far as regular script is concerned, is neither a pen with insignificant line changes and a rounded turn, nor a wave pick in Teton. But with uniform lines and square hard turns, write a kind of text similar to single-line artistic words, but as old as organ-shaped words. As far as official script is concerned, this kind of regular script has both the pen and the pretty posture of official script. The latter (official script) is mainly with Wei, benefiting from stone carvings such as Tianfa inscriptions and Longmen statues. Jin Nong wrote official script in his early years, with regular brushwork and simple strokes. His strokes were closed before delivery, with a tight structure and more introversion than extroversion. After about fifty years old, Jin Nong created a variant of official script, that is, Han Li and Wei Jie were combined into one. This new book, which calls itself "lacquer book", has square strokes, sharp edges and corners, thick horizontal and thin vertical, and dark and bright ink, just like pigment. When writing this new book, you should cut off the tip of the brush to make it square, such as a flat pen and hard edges and corners. Representative works include Crane Beam and Guangling Hotel Screen. Forgers, lacking these knowledge, often write Jinnong's running script and official script in a vulgar, smooth and unchanging way, inadvertently revealing flaws, which gives the appraiser an exploitable crack.