Book excerpt: Why do we protest? What compels us to participate in crowd violence? Can gender discrimination in the workplace be explained in psychological terms? From terrorist attacks to political uprisings, the social problems that have shaped the beginning of the new millenium can be explained using the theories and application of social psychology. Social Psychology of Social Problems does just that, with top international experts examining real-life issues. The book takes the view that if a problem and its origins can be understood, then perhaps it can be prevented from happening again. Social Psychology of Social Problems is required reading for students and practitioners of psychology, social policy and international relations. Provocative and challenging, it will be an essential resource for those who are seeking a deeper understanding of how social psychology can explain our complex world.