This book stems primarily from the intention to make public the seminar entitled "Narratives and Cultural Psychology" held by J. Bruner and C. Feldman in May 2000 in Florence. This seminar represents the point of view of these two authors, at an important moment in their scientific and human careers, on two themes: narratives and interpretative communities. The central concept on which this book works is the Aristotelian concept of peripeteia which, born in the world of art, is developed by Bruner in the field of cognitive and cultural psychology and by Feldman in the concept of interpretative community. Thus the first purpose of this book is to analyze