Is Zhu Yingjie's calligraphy collectible?

Zhu Yingjie's calligraphy is very collectible. Zhu Yingjie, male, Han nationality, 1956 was born in Heilongjiang Province and is a calligrapher. He used to be Director of the Asian Department of the Foreign Cultural Liaison Bureau of the Ministry of Culture, Cultural Counselor of the Korean Embassy in the DPRK and the ROK, Director of the Seoul Cultural Center, Vice President of the World Chinese Character Art Research Institute, and Senior Consultant of Samsung SDS Company in Korea.