Book excerpt: This volume examines the causes and consequences of increasing rates of obesity and overweight among children. In addition, it reviews specific policies and programs aimed at reducing obesity and overweight and the related health problems that result. Contents: Introducing the Issue, Christina Paxson and Elisabeth Donahue (Princeton University) Childhood Obesity: Trends and Potential Causes, Patricia M. Anderson (Dartmouth College) and Kristin F. Butcher (Federal Reserve Bank of Chicago) The Consequences of Childhood Overweight and Obesity, Stephen R. Daniels (University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center) Treating Childhood Obesity and Associated Medical Conditions, Sonia Caprio (Yale University School of Medicine) The Role of Built Environments in Physical Activity, Eating, and Obesity in Children, James F. Sallis (San Diego State University and Robert Wood Johnson Foundation) and Karen Glanz (Emory University) The Role of Child Care Settings in Obesity Prevention, Mary Story and Karen Kaphingst (University of Minnesota and Robert Wood Johnson Foundation), and Simone French (University of Minnesota) The Role of Schools in Obesity Prevention, Mary Story, Karen Kaphingst, and Simone French Markets and Childhood Obesity Policy, John Cawley (Cornell University) The Role of Parents in Preventing Childhood Obesity, Ana C. Lindsay, Juhee Kim, and Steven Gortmaker (Harvard School of Public Health), and Katarina M. Sussner (Harvard Graduate School of Arts and Sciences)