Description: This article is a book review of “Medical Risks: Patterns of Mortality and Survival,” by Richard B. Singer, MD, and Louis Levenson, FSA. The author of this review notes “monumental is an adjective one hears in reference to this book and it certainly seems apt both in regard to the tremendous amount of work in its preparation and, more importantly, its value to those to whom it is directed. The book contains a mine of information in the form of mortality indices relating to a large number of risk factors, mainly specific diseases, abnormal physical findings, or abnormal findings on medical tests.”