1. Reflect the theme: the title should clearly express the theme or content of calligraphy, such as Preface to Lanting Collection and Nostalgia on Red Cliff.
2. Concise and to the point: the title should be short and clear, and the theme or highlight of calligraphy can be seen at a glance, such as "a thousand words in regular script" and "a cursive song of everlasting regret".