Among the running script copybooks, Wang Xizhi's Preface to Lanting is considered to be the most beautiful. This article has 28 lines and 324 words. The overall style is charming and elegant, and the words are exquisite and picturesque. Calligraphers in past dynasties regarded it as the best, and Mi Fei, a calligrapher in Song Dynasty, even called it "the first post of China's running script".