Recent years have seen significant advances in knowledge about the effects of exposure to psychological trauma on young children from birth to age 5. This volume brings together leading experts to address practical considerations in working with traumatized young children and their caregivers. State-of-the-art assessment and treatment approaches are presented, together with innovative service delivery models. With a focus on building cross-disciplinary collaboration to better serve this vulnerable population, this is an indispensable resource for all mental health and human service professionals working with children at risk. In a new preface to the paperback edition, editor Joy D. Osofsky reflects on critical lessons learned in the aftermath of Hurricane Katrina.