Faced with the growing and persistent threat of radicalization, both in France and worldwide, it is crucial to explore new approaches to prevention. Preventing Radicalization proposes an innovative method for understanding and preventing violent radicalization, focusing on the development of individual responsibility through the enhancement of psychosocial skills. It examines the limits of traditional approaches centered on security and justice, and proposes concrete, innovative strategies focused on the search for solutions, notably through educational and awareness-raising programs. This integrated, humanistic approach, which aims to strengthen epistemic, emotional, attentional, relational and axiological skills, represents a significant advance in the primary prevention of violent radicalization processes. In a context where radicalization continues to threaten the stability of societies, it is imperative to rethink prevention strategies. This book provides the essential keys to understanding this complex threat for all those who wish to tackle it.