Hard-pen calligraphy is an important part of traditional Chinese culture. For beginners, it is very important to choose a good copybook. Here are some hard-pen calligraphy copybooks suitable for beginners:

1. "Wang Xizhi Orchid Pavilion Preface": This is one of the most famous works in the history of Chinese calligraphy, famous for its beautiful fonts and smooth strokes. Beginners can learn the basic techniques and specifications of hard-pen calligraphy.

2. "Yan Zhenqing Jiucheng Palace Liquan Inscription": This is one of Yan Zhenqing's masterpieces, famous for its powerful strokes and unique structure. Beginners can improve their hard-pen calligraphy skills through imitation and practice.

3. "Liu Gongquan's Mysterious Tower Stele": This is one of Liu Gongquan's masterpieces and is famous for its beautiful fonts and fine strokes. Beginners can learn the delicacy and precision of hard-pen calligraphy.

4. "A Thousand-Character Essay in Running Script by Zhao Meng_": This is one of Zhao Meng_'s masterpieces and is widely appreciated for its unique running script style and smooth strokes. Beginners can improve their running calligraphy skills through imitation and practice.

5. "Ouyang Xun's Thousand Characters in Regular Script": This is one of Ouyang Xun's masterpieces, famous for its dignified and steady regular script style and standardized strokes. Beginners can learn the basic skills and specifications of hard-tipped calligraphy.