This book is for boys and young men from 9 to 19 years old. It will help boys understand what happens to their body in puberty. They will find answers to many questions they either have no one to ask or are to shy to do so. They will learn how to take care of their personal hygiene, which sport is right for them, how to manage their time, how to behave in company and feel good about themselves. This book will help them grow up the easier way and build their self-esteem.