What are the good introductory courses for soft pen calligraphy?

If you want to study for a long time, you can recommend the first edition of seal script, which can be used in Qin Zhuan and Qing Dynasty. It is very important to practice lines and brushwork well for future study. The learning order can be horizontal or vertical. Horizontal is the classic calligraphy works of the same period, and vertical can be the order of seal script and cursive script. After understanding the general situation, you can focus on learning the style of a calligrapher.