"Lanting Preface". The dragon head in calligraphy always expresses the best. "Lanting Preface" is known as the best running script in the world, so the dragon head is "Lanting Preface". The preface to the Lanting Collection was written in 353 AD during the Jin Dynasty in China. The calligrapher Wang Xizhi met friends at the foot of Lanzhu Mountain in Shaoxing, Zhejiang, and wrote "the best running script in the world". It is also known as "Lanting Preface", "Linhe Preface", "Ye Tie" and "San "Preface to Orchid Pavilion Poetry on the Third Day of the Month" and so on.