Calligraphy is a method for China to write Chinese characters, that is, a skill to reveal the writing rules of Chinese characters. It is not an art category in itself, but a special technique. Calligraphy itself is produced to convey information accurately.
Its requirements are
1, written accurately, can't be wrong, misread, the text is for others to see, not how to write it yourself.
2, simple. On the basis of accuracy, it is still necessary to write simply. Historically, the change from seal script to regular script is the requirement of simple development.
3. Beautiful. This is the artistic content of calligraphy, and it is also a misunderstanding of many people now. Art or beauty is just one of the requirements of calligraphy.