"The Shang Han Lun" is widely regarded as one of the most important book in Chinese medicine, yet it is also considered the most difficult to master. With over 40 years of clinical experience, Dr. Chen Rui-chun elucidates key points about many of the formulae from the "Shang Han Lun", bringing them out of the cloud of mystery and into the daylight of clinical practice. Presented simply, and accompanied by examples of clinical cases for each formula, students of the "Shang Han Lun" will see how Dr Chen can take classical formulae beyond the scope of their traditional presentation and find new applications for their use. Divided into three sections, "The Clinical Application of Shang Han Lun Formulae" first presents case studies organized around the use of nearly 50 classical formulas, followed by other case studies from the author's extensive clinical experience. Finally, of great interest is the section containing the author's informal essays on diverse medical issues, such as the use of herbal wines, the connection of Spleen deficiency to the generation of wind, or whether San Ren Tang can be used to stop sweating. "The Clinical Application of Shang Han Lun Formulae" is a thoughtful and thought-provoking book, of great interest to clinicians and students alike, in the continuing struggle to constantly adapt our practice of Chinese medicine to a changing modern world.