Brief introduction of Cao

Cao's original name, also known as Qingyun, is called Bixiao. Born in 1925, Jiangsu. He used to be a professor at Nanjing Art Institute. Special researcher of Shanghai Academy of Social Sciences, artistic consultant of the Painting and Calligraphy Professional Committee of China Talent Research Association, honorary president of jianhu county Literature and Art Society, a famous calligrapher, calligraphy theorist and educator in contemporary China.