All existence is a permanent assumption of risk, a reflection of our physical and psychological frailties. However, our technological societies seem to generate new types of risks and growing concerns among populations. From this realization, in the 1980s, a sociology of risk was born that explores these areas of fractures of trust and fragility. Thus, a different sociological approach came to enrich it, since it is interested in individual risk behaviors and their meanings. Based on the analysis of numerous concrete examples, this book by David Le Breton draws up a panorama of research developed and knowledge built up in the last ten years around the notion of risk, which from then on is both a social and political, economic, legal and even ethical.