Is Sun's book cursive?

Shupu is the calligraphy theory's work by Sun, a calligrapher in the Tang Dynasty. The book was written in the third year of Wuhou (687), and he personally wrote the whole book in cursive script. The original Book Score is divided into six chapters and two volumes. The author of the second volume has not finished writing, only the first volume is left. Engraving printing was published in Song, Ming and Qing Dynasties. In the early years of the Republic of China, the photo studio first used photography technology to photocopy and publish Sun's original ink in the form of black and white photos, and then printed and published it in the form of Gu Long. After the establishment of the Palace Museum, similar photocopies were published.

Shupu had a great influence on China's calligraphy and laid the basic framework for calligraphy theory. Among them, it is mentioned that calligraphy is opposed to picturesque "skillfully involving Dan Qing's contribution to calligraphy", and the aesthetic concept of calligraphy should be "timely", and it is opposed to the conservative attitude of "three changes in quality and writing, rapid evolution and smooth things", and calligraphy is taught to others as a secret. Sun believes that learning calligraphy should be based on the integration of seal script, official script, regular script and cursive script, otherwise there is no way to talk about calligraphy. "Grass is not only true and true, but also close to specialization; I really don't understand grass, it's really awkward, and it's really based on stippling, which makes it very emotional; Grass takes stippling as its emotion and turns into shape. Grass is good, it can't be turned into words; It's really a loss to draw, but it's worth remembering. Although the answers are different, they are generally related. Therefore, it is also nearly two seals, and it is eight points, including chapters, and it is from it. If you don't pay attention, Hu's wind will be very awkward. 」

Bao, a thinker and calligrapher in the Qing Dynasty, commented that "I am no less than a roaring lion today" and thought that if the cursive brushwork was not so clear, the cursive script would probably be lost.