"Version: 20171001"--Title page verso.Includes bibliographical references.Preface -- Foreword -- 1. Introduction to risk management -- 1.1. Risk, hazard and exposure -- 1.2. Risk management -- 1.3. Sun exposure and risk -- 1.4. A risk management approach to sun protection2. The origin and beneficial effects of solar UV radiation -- 2.1. The nature of optical radiation -- 2.2. The Sun -- 2.3. Th…