Introduction to Xuelang Stone: Xuelang Stone has karst caves and twill patterns. It is full of changes with different light exposure and observation angles, and is intriguing. The five characters "Dongpo Jushi Shu" are also engraved on the stone. According to historical records, Su Shi had a close relationship with Xuelang Stone. When he was demoted, he got a strange stone in Dingzhou, Hebei Province. He named it "Xuelang Stone" because of its charm. Not only did he love it very much, he also named his study "Xuelangzhai" . However, the "Xuelang Stone" once collected by Su Shi has gone through many vicissitudes and is now stored in Dingxian County, Hebei Province. Moreover, the drawings on this stone clearly lack the essence of Su Shi's calligraphy, and should be regarded as an appended work by later generations.