Is Cao Yanjun's calligraphy valuable?

Worth some money. Cao Yanjun's paintings and calligraphy are of great value, ranging from "2,000 to 4,000 yuan" per square foot. Cao Yanjun, 1970, a native of Cao County, Shandong Province, is the executive vice president of Dongfang Xinzheng Painting and Calligraphy Institute of National School of Administration. In 2009, he won the first prize of the first national "Ping An Cup" painting and calligraphy exhibition, and participated in the painting and calligraphy exhibition of the Central State Organs Painting and Calligraphy Association on 20 10.