A Guide to Laser Safety is a practical guide to the safe use of lasers in science, education, industry, telecommunications, medicine and entertainment. It explains the nature of laser hazards, the requirement of international safety standards and the effective implementation of safety controls. A Guide to Laser Safety is divided into three sections. Part One gives an overview of the essentials of laser safety, briefly describing the nature of laser technology, the hazards of laser radiation, the system of laser classification and general approaches to hazard control. Part Two presents the background to laser safety in greater detail, discussing laser operations, the measurement of laser emission and exposure, the biological effects of laser radiation, the management of health and safety, and the quantitative assessment of laser hazards. Part Three considers the practical implementation of laser safety in specific areas of application, covering the use of lasers in science and engineering, industrial processing, medicine, telecommunications and entertainment.