Dear friends, I want to learn Yan calligraphy. Are there any copybooks suitable for writing in pen? Guys, help me!

Hello, this is the book club. Yan Ti refers to the calligraphy of Yan Zhenqing, a great calligrapher in the Tang Dynasty. The momentum is magnificent and the atmosphere is rich. The more classic ones are regular script (multi-pagoda) (ritual monument) and running script (nephew's watch) (competing for seats), but they are all written with a brush. Hard-pen copybooks are rare in the market. If you have to learn, you can refer to the brush. Haha, I'm learning facial style.