Is Liu Guiqiao's calligraphy valuable?

Liu Guiqiao's calligraphy is very valuable. Liu Guiqiao's calligraphy is the founder of China's "paint splashing painting", a master of oil painting, mural painting, Chinese painting and calligraphy, and a professor of Tsinghua University Academy of Fine Arts who has perfectly combined art and education for 70 years and held a big exhibition in the National Museum. Liu Guiqiao is another artist with outstanding social, historical and artistic contributions after Xu Beihong, Liu Haisu and Wu Guanzhong.