The volume "Four Body Calligraphy Movements" is Wei Heng's calligraphy theory work. The original text is included in "Book of Jin·Biography of Wei Heng".
The article "Four Styles of Calligraphy" discusses the composition of Chinese characters and the evolution of glyphs and fonts, and comments on calligraphers before the Western Jin Dynasty, pointing out their gains and losses in calligraphy. This article can be said to be a summary of the history of calligraphy before the Western Jin Dynasty, and it is also an important document on the theory of calligraphy in my country.