Janne Kivivuori's Discovery of Hidden Crime is one of the best social histories of criminology in print. It focuses on the scientific, cultural, and political origins of the self-report delinquency survey, but in many ways is a broader history of criminology itself, a sociology of criminological knowledge... The book even has a plot line. It starts with a mystery-how can we break into that locked room to discover the amount of hidden crime?; it chronicles the long search for the tools to pry open the lock; and it shows how criminologists finally broke into the room where the treasure lay... Above all, this book is valuable as a social history of criminology, one that will, I hope, stimulate courses in this field.