One of the most striking aspects of the epidemiology of depressive disorders is the rapid rise in incidence observed between the ages of 11 and 14. This book explores the developmental changes occurring during the transition from childhood into early adolescence in order to understand how vulnerability to depression develops. The focus is on emotional development, which serves to encapsulate the cognitive, sexual, interpersonal and familial changes that are occurring during this life stage. This will be an essential read for practising psychiatrists and psychologists who work with early adolescents, along with academics and researchers interested in affective science or developmental psychology and psychopathology. Other professionals working with children and adolescents, including teachers, social workers, counsellors and family practice physicians will also find this a useful summary of the latest scientific developments that are shedding light on the vulnerabilities and opportunities particular to this critical stage of life.