This text provides clear instructions regarding examination of the tongue in the context of its relationship to the internal organs and the eight principles. It includes the detail of tongue spirit, body color, shape, and coating; case histories; and eight four-color pages of 40 plates. In the appendices following the text, the basic information is presented in relationship to organizational principles of the Shang Han Lun, the Wen Re Lun, and the Three Burners classification. A further appendix summarizes the principal points in tables. There is a discussion of tongue appearances that signify dangerous conditions, and a glossary of 27 Chinese terms most important to the text. There are 52 case histories and 59 color plates, as well as sections addressing integration of tongue and pulse diagnosis; the use of the tongue in diagnosing emotional problems; tongue diagnosis and herbal therapy; the use of the tongue in prognosis; and special considerations regarding tongue diagnosis in children.