Nanjing, one of the four ancient classics of TCM, was followed by later students of TCM, XIONG Zong-li, a famous doctor and publisher in the Ming Dynasty, compiled Wutingzisujiebashiyinanjing (Wutingzi's Vernacular Explanation of Nanjing) which combined visual and legible graphic interpretation with vernacular language to explain, or quoted the classics, combined with his own opinions. This book popularly and vividly displayed the substance of Nanjing to the descendants and made a great contribution to the popularization and propagation of TCM classics. It is a valuable reference book both to students and researchers of Nanjing.