Su Shi's evaluation of Huang Tingjian's calligraphy thinks that the knot characters are too long and narrow, and the appearance is like "snakes hanging from the treetops". But Dongpo also added this knot in calligraphy to increase the ups and downs of the composition. Huang Tingjian described Su Shi's writing style as "a stone crushed a frog", which often appeared in a horizontal flat knot. According to Huang Tingjian, Dongpo is not good at hanging his wrist, so the range of activities is cramped when writing, and the right side of the word is not easy to develop. For example, writing with a pen is easy to become a sick pen, resulting in a situation of "left show and right withered". However, this phenomenon is just like the history of "holding the heart and raising the eyebrows". Although it is a shortcoming, it is also a feature of his book. The brushwork of hanging the needle with the word "holding the paper" is extremely vivid, which shows that Su Shi can't hang his wrist. The thickness of the pen used in the work comes from the influence of Yan Zhenqing, and the pen pressing action of the word "water" can be seen.
Huangzhou Cold Food Poetry Post presents a dynamic trend with ups and downs. Poetry is desolate and melancholy, and calligraphy is produced in this mood and situation. Throughout the ups and downs, rapid and steady, incisively and vividly, in one go. Su Shi put the changes of artistic conception and emotion in his poems in the changes of stippling lines, either before or after, changing and changing, breaking with the trend, and being natural. Its words are also strange, big or small, sparse or dense, light or heavy, wide or narrow, uneven, arbitrary and strange, and varied.
Because of the praise of many scholars, the world called Cold Food Sticker, Preface to Lanting by Wang Xizhi in the Eastern Jin Dynasty and Book of Sacrificing My Nephew by Yan Zhenqing in the Tang Dynasty, or simply called Cold Food Sticker the third running script in the world. Others compared the "three major running scripts in the world" and said: "Preface to Lanting" is the wind of Confucianism, "Post for Sacrificing Nephews" is the wind of the wise, and "Cold Food Post" is the wind of scholars. Both of them are equal, each leading the way, which can be called three milestones in the history of China calligraphy.