The book is written at a very high level from the perspective of different, internationally active coaches with international competition experience. It requires in-depth knowledge and physiological and especially advanced in-depth knowledge about the training theory, training planning and control. Without these basics, the book is not much and it is not for anyone who does not have at least a basic knowledge in coach beings. the book I therefore evaluated with 5 stars because it's running very well for trainers. For the layman, rather unsuitable