Written for professionals, whether users, designers or manufacturers of lasers, as well as students and researchers in laser technology. For the user, whether as operator, applications engineer or technical manager, the book brings order to the array of designs, shapes, sizes and specifications of industrial carbon dioxide laser which currently populate the market place. For the designer, the book presents in a systematic manner those design choices which are fully controllable and those which, in a good design, form an enlightened compromise between the desirable and the achievable; for the manufacturer, there is provided a concise collection of essential data. The book offers a complete treatment of the subject from theory through design and construction, bringing together the material required by the industrial designer. The analysis of the designs currently available should enable the designer to select the optimal components and for any particular specification.