Brain development, whether typical or atypical, provides the foundation for all behavior and possible psychopathology. This volume takes a comprehensive and translational approach in describing how basic neuronal patterning occurs, organizes into systems, and forms functional and inter-connected networks. The role that hormones and genes play in influencing brain development is also described. The resultant emotional, cognitive, reward, and social systems show how typical development proceeds. The second part of the book describes when the process of development goes awry. Here, a number of childhood disorders are covered. Autism, ADHD, emotional syndromes of bipolar disorder and depression, oppositional defiant disorder and conduct disorder, and sleep and schizophrenia are included in this volume. Written by leading experts in their respective fields, this volume will be a valuable resource to mental health professionals as well as preclinical investigators hoping to gain additional understanding about the neurobiology of the developing brain.