What kind of copybook should I choose for the first time to practice thin gold body (hard pen)?
First of all, isn't this the same book? Do you need to worry about which to buy? So if it is a beginner's exercise, it may not be enough to write only a few lines like figure 1, so I suggest using figure 2, and then buy your own Tian Zige to practice according to the position of each stroke. Finally, I really don't like the thousand-character script in regular script. That's Song Huizong's work when he was about twenty years old. I always think this thin gold is immature. You can look for Hui Zong's other works, such as his works in his forties, which are really much better than regular script.