Excuse me, is Cao Shuduo's calligraphy worth collecting?

Yes! ! Cao Shuduo? Male, born in June, 1927, from Xianyang, Shaanxi, has been engaged in calligraphy teaching all his life. Member of Shaanxi Calligraphers Association, painter of Chinese and foreign calligraphy and painting exchange association, painter of China Chinese and foreign celebrity culture research society, researcher of Shaanxi Calligraphy and Painting Art Research Institute, and researcher of China Calligraphers Association. Shaanxi Old Annual, Shaanxi Daily, Shandong Jining Daily, Shaanxi Culture and Art Newspaper and other newspapers published my deeds and works many times, and my works participated in the first and second international painting and calligraphy exchange exhibitions in 1997 and 1998. It has been exhibited and collected in Seoul, South Korea, Sao Paulo, Brazil, Tokyo and Osaka, Japan. 1997 won the "Yanhuang Cup" Gold Cup, 1997 the "Duyuan Cup" National Calligraphy Exhibition Silver Award, and his works were selected into Appreciation Collection of Calligraphy Works in the 20th Century, Collection of Works of Contemporary Famous Painters, Exhibition Festival of World Contemporary Famous Painters, and International Dictionary of Painters. 1996 In order to improve the students' calligraphy level, we published 10000 copies of Student's Copy Book, which was well received by teachers, students and the society. 1999 in order to inherit and carry forward the traditional calligraphy art of the motherland, I wrote another 5,000 volumes of "Zhengti Copybook for calligraphy", which has been published and distributed to the public.