Psychologie des foules - Psychology of Crowds (1895) Psychologie des foules est un livre de Gustave Le Bon paru en 1895. Il s'agit d'un ouvrage de rĂ©fĂ©rence concernant la psychologie sociale, dont les thĂ©ories sont encore discutĂ©es aujourd'hui. Gustave Le Bon montre dans cet ouvrage que le comportement d'individus rĂ©unis n'est pas le mĂȘme que lorsque les individus raisonnent de maniĂšre isolĂ©e - il explique ainsi les comportements des foules. The Crowd: A Study of the Popular Mind (French: Psychologie des Foules; literally: Psychology of Crowds) is a book authored by Gustave Le Bon that was first published in 1895. In the book, Le Bon claims that there are several characteristics of crowd psychology: "impulsiveness, irritability, incapacity to reason, the absence of judgement of the critical spirit, the exaggeration of sentiments, and others..." Le Bon claimed "that an individual immersed for some length of time in a crowd soon finds himself - either in consequence of magnetic influence given out by the crowd or from some other cause of which we are ignorant - in a special state, which much resembles the state of fascination in which the hypnotized individual finds himself in the hands of the hypnotizer. " Table of contents : Introduction: The Era of the Crowds. Book I: The Mind of Crowds Chapter I: General Characteristics of Crowds -Psychological Law of Their Mental Unity Chapter II: The Sentiments and Morality of Crowds Chapter III: The Ideas, Reasoning Power, and Imagination of Crowds Chapter IV: A Religious Shape Assumed By All the Convictions of Crowds Book II: The Opinions and Beliefs of Crowds Chapter I: Remote Factors of the Opinions and Beliefs of Crowds Chapter II: The Immediate Factors of the Opinions of Crowds Chapter III: The Leaders of Crowds and Their Means of Persuasion Chapter IV: Limitations of the Variability of the Beliefs and Opinions of Crowds Book III: The Classification and Description of the Different Kinds of Crowds Chapter I: The Classification of Crowds Chapter II: Crowds Termed Criminal Crowds Chapter III: Criminal Juries Chapter IV: Electoral Crowds Chapter V: Parliamentary Assemblies.