Too Many People? provides a clear, well-documented, and popularly written refutation of the idea that "overpopulation" is a major cause of environmental destruction, arguing that a focus on human numbers not only misunderstands the causes of the crisis, it dangerously weakens the movement for real solutions. No other book challenges modern overpopulation theory so clearly and comprehensively, providing invaluable insights for the layperson and environmental scholars alike. Ian Angus is editor of the ecosocialist journal Climate and Capitalism, and Simon Butler is co-editor of Green Left Weekly.