In this groundbreaking book that is built on decades of work on the front lines of the criminal justice system, expert psychologist Craig Haney provides a blueprint for fundamental reform by changing our understanding of who commits crime and why. Based on a comprehensive review and analysis of psychological research, Haney offers a carefully constructed framework for enhancing legal fairness and reducing crime through proactive prevention instead of reactive punishment. Haney meticulously reviews evidence documenting the ways in which a person's social history, institutional experiences, and present circumstances powerfully shape their life course, with a special focus on the role of social, economic, and racial injustice in crime causation. He thus effectively debunks the “crime master narrative—the widespread myth that criminality is a product of free and autonomous “bad choices—an increasingly anachronistic view that cannot bear the weight of contemporary psychological data and theory. This is a must-read for understanding the origins of criminal behavior and developing a fair and effective system to address them.