Is Li Guangchen's calligraphy valuable?

Li Guangchen 1939 was born in Dalian, and 1964 graduated from the Stage Art Department of China Theatre Academy. He studied oil painting and Chinese painting under teachers Wang Baokang, Zhang Chongqing,, and. Learn from Zheng Songxian's calligraphy and Mr. Liu Bingsen's fine arts. Member of Beijing Artists Association, director of China Population Promotion Association, member of China Popular Science Writers Association and member of China Architectural Society. His works are expensive and very collectible!