One is the calligrapher represented by what. Generally speaking, they mainly study steles, or from steles to posts or from posts to posts.
Secondly, the calligraphy of the Northern Wei Dynasty, which had been neglected before, gradually became popular under the advocacy of Ruan Yuan, Bao and others, and calligraphers such as Zhao, Kang Youwei and others rooted in Wei Bei Studies appeared.
Thirdly, the research scope of seals and official seals has gradually expanded, involving Shi Guwen, seals, inscriptions and many other aspects. By the end of Qing Dynasty, the excavation of Oracle Bone Inscriptions made this trend particularly prominent. Mo Youzhi, Wu Changshuo and Luo Zhenyu are the representatives in this field.