The book "Obesity or Excessive Fatness: Various Causes and Rational Remedies" by Dansel, Zh.-F. (Jean-Francois) is a detailed study of the problem of obesity. The author examines various reasons that can lead to excess weight, and also offers rational methods of treatment of this disease. The book contains information about the influence of nutrition, physical activity, genetics and other factors on the development of obesity. Thanks to its simple language and systematic approach, this book can be useful both for specialists in the field of medicine and for a wide range of readers who are interested in issues of a healthy lifestyle.