Wang Xizhi's goodness, truth, behavior and grass. His contribution to calligraphy is mainly on the basis of the calligraphy style of Han and Wei Dynasties, adding losses and changing methods, achieving the peak and exquisite brushwork. Achieve an aesthetic effect. Preface to Lanting Collection is his masterpiece. This book embodies the author's skillful brushwork, profound traditional skills, extensive cultural accomplishment and noble artistic sentiment. Known as the best running script in the world.