of evolution, in line with the fact that it also brings both humanism and existentialism to frame this whole conceptual world in an exploratory and perspective way. The book is scientific, with a lot of useful technical information, and it is philosophical on a thoughtful and relevant level of abstraction. It is also a practical introduction to the body’s various motor and biochemical properties, with in-depth descriptions of its function and benefits in relation to moving around in nature. The central plot of the book is that we work conscientiously with ourselves in order to re-establish the connection to nature.