More collectible. Early works were scattered among the people, mostly invited and written temporarily, with average collection value. In recent years, the collection market is becoming more and more popular, and the auction market is booming. His works are becoming more and more mature, the artistic value is gradually recognized, and the collection value is soaring. In recent years, the price of his works has fluctuated between 2000 and 3500 pounds per square foot. You can collect one or two fine products according to economic conditions. Considering the age and growth of the artist, there is still room for appreciation of his works. We must distinguish between fine works, even the best artists have hasty works, and their improvisational works cannot be compared with fine works. Then, we should distinguish between genuine products and imitations. There will be imitations in the market for calligraphers' works with collectible value. The price of imitations is much lower than the real ones, but the collection value is greatly reduced.