What copybook is good for practicing hard-pen calligraphy (regular script) (the copybook should explain the writing method)

Regular script can be selected from Zhang Menglong Monument, Zhang Hei Nv Monument, Jiucheng Palace Monument, Yan Monument and Chu Suiliang Regular Script.

When choosing copybooks, you must choose the best running script and ancient copybooks. Only when you choose the best can you get a high starting point and a high vision. Hard pen calligraphy is of high level, all of which are learned from ancient posts. Only by practicing in this way can you achieve something in the future.