Calligraphy in Song Dynasty is good at rhyme and interest, and Evonne's "The Book of Thin Gold" embodies similar aesthetic interest of the times, which is called "the beauty of heaven and bones is beautiful, and the interest is dull"; It also has a strong personality color, the so-called "such as bending iron and breaking gold." This calligraphy style has never appeared in previous calligraphy works. Chu Suiliang's fine brushwork is only a small part of the same, but most of them are different. Compared with Xue Yao's ci in Tang Dynasty, it is the closest. Perhaps Evonne came from Xue Yao's poem Shi Li, but his writing is obviously much more mature than Xue Yao's. This is a very mature calligraphy style, and Evonne gave full play to its artistic personality. This kind of thin, crisp and elegant calligraphy style, with a side like orchid bamboo, requires extremely high calligraphy skill and self-restraint, as well as a calm mind to complete. Of course, it is not easy for others to imitate. There are many descendants who learn from his books, but few who get his bone marrow are like the morning star. Jin Zhangzong once wrote the famous calligraphy and painting of Song Dynasty in Ming Chang Neifu, like You Chuntu, the wife of Zhang Xuan, which was copied, with delicate brushwork and poor form and quality.