After reviewing the relevant data and simplifying the complex topic of what happens to children's developmental trajectories when they are maltreated, Chapter 19, "Neurodevelopmental Impact of Violence in Childhood," addresses the political reality that society has always and will always reap what it sows. Without preaching, the author, Bruce D. Perry, M.D., Ph.D., ends his chapter by suggesting that increased evidence of the detrimental effects of violence should and can provide parents, professionals, public officials, and policy makers the evidence they need to advocate for policies that ultimately decrease the amount of violence in youngsters' lives. The entire textbook reflects a similar style.