Regular script: it is a basic course for learning calligraphy.
Official script: Official script can be practiced step by step on the basis of regular script because there are some differences between official script and regular script. Official script pays attention to horizontal and vertical, with no hook in the head and tail, while regular script is the opposite.
Copying: pro-portrayal, copying on the work with paper.
Creation: a work created by oneself on the basis of copying.