The book "Useful sports for boys" by the author Alfred Rochefort Calgoun offers readers to study the basics of a healthy lifestyle through various types of sports. With clear and accessible information, the author helps boys understand the importance of exercise, proper nutrition, and overall well-being. The book contains advice on exercise, recommendations for maintaining a healthy form and the importance of sports for the development of physical and psychological qualities. "Useful sports for boys" can be an important source of information and inspiration for young athletes who want to maintain their health and actively develop.