Wu Decai's calligraphy works have certain collection value and artistic value. His works have participated in many international and domestic large-scale painting and calligraphy exhibitions sponsored by China Federation of Literary and Art Circles, China Calligraphy Association, China Artists Association and Xiling Printing Society, and won many awards. His works have been selected into the classic calligraphy and painting library of China Contemporary Power School, such as "The Age of Prosperity", and have been collected by many museums, memorial halls and cultural and artistic institutions at home and abroad.
However, judging the value of specific calligraphy works requires comprehensive consideration of many factors, including artistic level, historical value, cultural connotation, author's reputation and so on. In addition, the relationship between market supply and demand, the background of the times and the social environment will also have an impact on the value of the work. So if you want to know the specific value of Wu Decai's calligraphy works, I suggest consulting a professional art evaluation agency or auction house.