The author, a successful writer of the book "Mechanics and Structure of Martial Arts," aims to make martial arts easily understandable for all interested parties through a clear theory. Following the outlines of martial arts (all styles), there are meaningful clarifications and definitions of terms, such as "striking power." This is followed by an explanation of fundamental principles of mechanics, like "anatomy of a strike," as well as the application of well-known physical principles to combat techniques, such as "criterion of speed" and "falling step." The author also consistently addresses the application of physiological principles to combat techniques, for example, "leg techniques." Since the book claims the status of a manual for martial arts, the chapters on "weapons" and "training aids" are essential. Additionally, the legal aspects are also discussed.