Pu Shu, a 3700-word magnum opus, is profound and rich in content, involving all important aspects of China's calligraphy. It reveals the essence of calligraphy art and many important laws, and has become a landmark work in the history of calligraphy theory in ancient China, marking the development of China's calligraphy into a brand-new brilliant stage. Sun Shi's main theoretical contribution lies in his consistent and scientific exposition of the "expression" essence of China's calligraphy in Shu Pu.
Sun (646 ~ 69 1) was a calligrapher and calligraphy theorist in the Tang Dynasty. Honesty is what you say. Wu Jun was born in Fuyang (now Fuyang, Zhejiang) and Liu Chen (now Kaifeng, Henan). You Zhouwei once joined the army and led government clerks to join the army. Ambitious, liberal arts and ancient. He is good at regular script and running script, especially cursive script. He took the method of Wang Xizhi and Wang Xianzhi, and his brushwork was vigorous, commensurate with the two kings. He wrote the score of two books, which has been lost. The Preface to the Book Spectrum is divided into six parts: tracing the source, distinguishing the style of the book, evaluating the title, describing the brushwork, admonishing the scholar and hurting the confidant. It is profound and concise, and occupies an important position in the history of ancient calligraphy theory. Many of these arguments, such as the three stages of learning books and the five combinations in creation, are still meaningful today. There is an ink book score handed down from generation to generation.