Alexander Нилл began the experiment on education of happy children almost one hundred years back, creating becoming legendary school, in that main was not educating and development of personality of child. In this book Нилл brings priceless judgements over, servings basis of whole philosophy of "education by freedom". Нилл opens eyes to us. He knows exactly, that children - creatures are initially kind. And believes that, if to allow to the child to be by itself, that gradually will get rid the problems and will become personality - not simply free, but also happy.