Recent studies have established Finnish sauna bathing as a source of numerous health benefits. To enjoy the long-term effects, as well as immediate gratification from sauna bathing, one needs a proper Finnish sauna. For the first time, this book presents the wisdom which has been accumulated across centuries by Finnish builders, designers, and researchers, to perfect the sauna design. It instructs the reader to master both tangible and intangible, visible and invisible elements of a sauna. The book has a special emphasis on the sauna experience, living up to a belief that short-term satisfaction is the first step towards long-term health benefits. This book is presented as a handbook for experience-driven sauna design. It covers all necessary aspects needed to create a functional, healthy and pleasurable sauna: from heating and air quality to interior design. It features several examples of contemporary Finnish sauna designs and outlines why a true sauna experience is so much more than merely “a hot room”.