Regular script. Because it is standardized, easy to use, and has distinctive features. But it is not easy to write regular script well. The writing style of official script is relatively simple and the structure is simple, making it very suitable for beginners. If you want to write well and want quick results while studying, then first learn a little bit about the structure of regular script and relatively basic writing techniques, and then learn running script. This will be relatively faster and more practical. If you don't want to become a calligrapher, you don't have to deliberately copy ancient calligraphy. Modern people's calligraphy is more direct and has summarized conventional features such as brush use and structure, which is also easy to learn.