Plasma physics textbooks usually reflect the schism typically observed in the community, namely the division into rather independently operating sub-communities working on magnetic fusion, laser plasmas, astrophysical plasmas, and low-temperature plasmas. This book is based on the author's strong belief that plasma physics in large parts is based on the same physical concepts and principles. Having taught basic plasma physics now for about two decades, the contents of the book will represent all the experience gained in numerous courses and knowledge accumulated as an active observer of the scene with a generally widespread interest. The book is intended to teach the physics only, however examples from nature, science, and technology are considered as an important motivation.