My handwriting is not good. I want to practice my calligraphy. Are there any good copybooks or methods? (For example: Pang Zhonghua) Note: It is best to buy it in JD.COM.

I think if you want to practice hard pen calligraphy well, you'd better start with brush calligraphy. After practicing calligraphy, there is basically no problem with hard pen.

Ancient calligraphy posts are all classics. You can look around, find one you like and keep practicing.

If you insist on writing, I recommend Mr Tian Yingzhang's. There is a CD in the copybook. You can practice against the video.

There is one in JD.COM.