The psychology of nations and the masses - a reference book of all politicians seek power. She reread and carefully studied Lenin, Hitler, Mussolini, Stalin. It sets out the basic and simple principles of crowd behavior, describes the tricks to succeed in politics the struggle for power. The paradox and the tragedy of the author is that with few exceptions, in this century, the works of the famous scientist-scientist Gustave Le Bon deeply studied only potential dictators. Those who book is written by the author, turned a deaf ear to his warnings and foresight.