I want to publish my own hard pen. What does Copybook for calligraphy do?

Oh, it's not that simple. I don't know if you are famous. It is illegal to publish a book without the approval of the authoritative department. Unless you bought the book number. The general book number is about 40 thousand yuan. I suggest you don't buy the book number, it's not cost-effective. Generally you don't have to go through four procedures. Finally, I have to buy 1000 copies at my own expense for publicity.