How to tell whether a calligraphy work is handwritten or copied?

The identification of disapproval of suicide is actually quite simple. The key is that you should be careful. At present, the highest imitation is watermark imitation, because it is high imitation, printed on rice paper, and it is difficult to distinguish between true and false. My trick is to watch the strokes fly white. Looking closely at the replica, the flying white is in the shape of regular dots, and the original is naturally infiltrated with ink. Hehe, it's hard to understand, that's all!