Wang's History of the Sui and Tang Dynasties, Tang's Three Treatises on the History of the Sui and Tang Dynasties in Wei, Jin, Southern and Northern Dynasties, Zhang's Introduction and Reflection on the Theory of the Transformation Period of the Tang and Song Dynasties, Zhang's Model and Its Change-the Transformation of the Tang and Song Dynasties from the Perspective of Historical Research, Li Huarui's Review of the Research on the Transformation View of China, Japan, Tang and Song Dynasties in the 20th Century, and Liu Liyan's What is it?
Hot spot: the historical orientation of Sui and Tang Dynasties and the reform of Tang and Song Dynasties
Research on the Problems of Scholar-officials, Scholars and Gentry
Research on land system and easement system
Research on Officials and Imperial Examination System
Research on grass-roots society in Tang Dynasty
Study on Ritual System and Legal System
Research on the history of Sino-foreign relations