A calligrapher is a person who is good at calligraphy; a person who has the ability to write Chinese characters and can push it to an artistic level. To put it simply, he is an artist whose main creation is calligraphy. In other words, someone who is proficient in calligraphy.
Therefore, Wang Xizhi is represented by the "Lanting Preface"; Yan Zhenqing is represented by the "Manuscript of Sacrifice to Nephew"; Mi Fu is represented by the "Shu Su Tie"; Zhao Mengfu is represented by the "Deng Ba" "Stele"; Wang Duo, whose representative work is "Xianshan Garden Tie"; Wu Changshuo, whose representative work is "Xiling Yinshe Ji".