Based on forty years of research and thirty years of teaching experience, renowned American Sinologist Professor Cai Zongqi presents his lifetime achievement and popular work, The Inner Logic of Tang Poetry. The book carefully selects 72 classic Tang poems and offers a comparative analysis of the three major poetic forms — regulated verse, Chinese quatrains, and ancient-style poetry. It systematically explains the formal features and artistic characteristics unique to each form. Innovatively, the book organizes poems into thirteen categories, revealing the distinctive techniques famous poets employed in handling these themes through comparative readings. Employing modern linguistic analysis, it explores the structure of each poem by examining its diction, syntax, and overall composition to uncover the inner logic of each poem and to reveal the artistic principles behind poetry creation. With profound cross-cultural poetics, the author moves beyond traditional approach that focuses purely on the poem itself, establishing this work as a new model for contemporary appreciation of Tang poetry.