Is Zhao Lvtian's calligraphy valuable?

It's worthless Because Zhao Lutian is engaged in calligraphy teaching, calligraphy has no auction value. Zhao Lutian, male, born in June 1952, member of China Calligraphers Association. Engaged in calligraphy education and teaching for decades, full-time calligraphy teacher for 8 years. He has been commended by the provincial level three times and trained by the court since childhood. He loves calligraphy and has made great achievements. He won many awards at the National Book Fair.