Introduction to Wang Xisan: Hebei native, formerly known as Wang Ruicheng, born in 1938, is the first master of Chinese arts and crafts and a representative inheritor of national intangible cultural heritage projects. In 1957, he became a disciple of the famous interior painting artists Ye Fengqi and Ye Feng. He was the first successor of the "Ye School" of interior painting art with a foreign surname. On the basis of learning from famous masters, he learned from the strengths of each school, absorbed the nutrients of traditional Chinese painting, calligraphy and other arts, and created his own style of interior-painted snuff bottles. He is proficient in painting landscapes, figures, flowers, trees, insects, and fish, and is especially good at drawing portraits. The snuff bottles he painted inside the portraits of emperors of the Qing Dynasty were praised as "unparalleled treasures". He was the first to create the "metal rod hook brush" that is widely used in the interior painting circle, and pioneered the "oil paint interior painting technique". He is regarded overseas as "the most outstanding contemporary master of interior painting".