This book is about effective training. The author explains how the body works and how to design a workout that supports personal goals. It also provides information on metabolism, weight loss, muscle building and orthopaedic problems. The book offers a well-founded and understandable explanation of how the body works and how to design an effective workout. The author emphasizes that effectiveness is not to be equated with fast, hard or long training, but rather with a conscious training that supports one's own goals. The author also refutes some common myths spread on social media, such as the idea that a certain exercise can help you lose fat, build muscle, become more agile and reduce stress. He clarifies that muscle and fat build-up always take place in the body at the same time and that endurance training should take place under good oxygen coverage in order to increase endurance and have more energy. What is particularly positive is that the author proposes a clear order for the structure of different aspects in the body. He compares this to building a house and stresses that while it is possible to start with the roof or the garden, it is more meaningful and effective to start with the foundation. The book also provides information on metabolism, weight loss, muscle building and orthopaedic problems. The author explains these topics in an understandable way and gives concrete tips and advice. Overall, the book is a valuable resource for anyone who wants to make their training more effective. It provides sound information, clear explanations and practical advice. I recommend it to anyone who is interested in effective training. The book provides a comprehensive guide for effective training, based on sound information about the body and its functioning. It refutes common myths and offers concrete tips and advice.