Yuan Angfeng of Nanliang wrote the Book Review of Ancient and Modern Times, in which 25 people were listed, each commenting on his style with concise sentences. This is the beginning of the book. Yu Jianwu's Shupin contains 123 people who can write from Han Dynasty to Qi Liang. The title is the general preface, which is modeled after Hanshu Ancient and Modern People's Table. It is divided into middle and low-grade products, and each product is divided into upper, middle and low-grade products, which are combined into nine products. Every department is based on theory and has a rigorous style. In the Southern Dynasties, Lun Shu was waiting in front of Wang Qi. Li Sizhen's "Hou Shu" in the Tang Dynasty was upgraded to the first class and contained more than 80 people. The wording is wrong and orderly. Zhang Huaiguan's "Introduction", 3 volumes, with 10 category, describes the source, with praise, and the second is the general introduction; A volume, the beginning of the three products, each with the same body, storytellers more than 100 people, prequel, post-evaluation, Yang □ ancient and modern, on the essence and appropriateness, are all loaded before and after. Others, such as Mi Fei's Famous Sentences of Haiyue in the Northern Song Dynasty, are quotations from books on weekdays, but they are not integrated. Although criticized by the ancients, there is no lack of detailed investigation and original opinions. With the development of calligraphy theory, most of the later calligraphy works were not limited to the integration of evaluation, but gradually integrated into a wider and richer calligraphy theory.