In his world best seller, "Emotional Intelligence", Daniel Goleman defended a revolutionary thesis: success depends less on the intellectual quotient than on the ability to understand, master and cultivate the emotions that are within us. Today he extends his field of research to the field of our relations with others. He makes us penetrate the arcanes of neurosciences in a clear and living way. Feeding many examples covering all areas of social relations (professional, friendly, love...), here is a remarkable practical guide for all those who aspire to a fairer knowledge of themselves and seek to live with others more constructive and fruitful relationships.