I forgot to mention, I teach two courses, one is hard pen calligraphy, and some bank staff want to learn to write, that is, to write better, because leaders sometimes read diaries, so they learn calligraphy and use it in practical work. The second is soft pen calligraphy. There is a man, about 55 years old, who still has a gap in his job. He came to learn calligraphy because he wanted to master the basic method of writing brush before he retired. After retirement, he can practice writing by himself because he is also interested in calligraphy. He wants to write after retirement. .