This second edition of the Handbook of Early Childhood Intervention provides a comprehensive overview of this complex and continually evolving field by an outstanding group of contributing authors. Eighteen of the twenty-eight chapters are new to this edition; chapters from the first edition have been updated. It combines rigorous scholarship with state-of-the-art content on policy and service delivery. It is designed to address a broad, multidisciplinary audience including psychologists, early childhood educators, social workers, pediatricians, nurses, child psychiatrists, physical and occupational therapists, speech and language pathologists, and professionals interested in public health and social policy. The Handbook is a valuable resource for both graduate students and experienced professionals.