Two very important topics in infants, children and adolescents are brought together in this one issue: "Eating Disorders (Anorexia Nervosa, Bulimia) and Obesity". The issue is divided into four sections: clinical aspects, etiology and neurobiology, treatment and prevention, and outcome. Articles cover diagnostic issues, psychiatric co morbidity, risk factors, neuroimaging, neurobiology, treatment modalities, cognitive behavioral approaches, family intervention, pharmacotherapy, prevention, and outcome.