TheLing Shu, also known as theLing Shu Jing, is part of a unique and seminal trilogy of ancient Chinese medicine, together with theSu WenandNan Jing.It constitutes the foundation of a two-thousand-year healing tradition that remains active to this day. Its therapeutic approach is based on a purely secular science of nature, with natural laws serving as guidelines for human behavior and medical treatment. No other text offers such broad insights into the thinking and manifest action of the authors of the time. Following an introduction, this volume contains the full original Chinese text of theLing Shu, an English translation of all eighty-one chapters, and notes on difficult-to-grasp passages and possible changes in the text over time on the basis of Chinese primary and secondary literature of the past two thousand years and translator Paul Unschuld\'s own work. TheLing Shureveals itself as a completely rational work, and, in many of its statements, a surprisingly modern one. It will provide the foundation for comparisons with the nearly contemporaneousCorpus Hippocraticumof ancient Europe and today\'s iterations of traditional Chinese Medicine as well.