This is the first book to systematically examine the development and course of bipolar disorder across the lifespan, identifying important directions for evidence-based treatment and prevention. The editors and contributors are foremost authorities who synthesize cutting-edge research at multiple levels of analysis, including genetic, neurobiological, cognitive, emotional, and family perspectives. Compelling topics include how bipolar symptoms change from childhood through adolescence and adulthood and the interplay of risk and protective factors at different developmental stages. The volume also addresses how developmental knowledge can inform the selection and timing of clinical interventions.