1, Preface to Lanting by Wang Xizhi: This is a classic in the history of calligraphy in China, known as "the best running script in the world", and was created in the Eastern Jin Dynasty.
2. Draft of Yan Zhenqing's Sacrifice to His Nephew: This is the work of Yan Zhenqing, a calligrapher in the Tang Dynasty. It is called Ji for offering sacrifices to nephews and praising doctors, and is known as "the second running script in the world".
3. Su Shi's cold food post: This is written by Su Shi, a great writer in the Northern Song Dynasty, also known as Huangzhou's cold food poem post, and is known as "the third running book in the world". These three works represent the pinnacle of running script and are praised as "the three major running scripts in the world" by later generations.