For the pen Copybook for calligraphy, please refer to the supplementary questions for specific requirements and seek the help of experts.

Looking at the surprised way. It should be sold in Xinhua Bookstore. "Ling Fei Jing" is a masterpiece in lower case that calligraphers in past dynasties must visit, and its level is very high. Don't practice modern pen copybooks, it's not good for you. To believe in history, what history has left is absolutely a masterpiece, and The Ling Fei Classic is one of them. Let me show you some photos: