Mental health disorders are prevalent in children and adolescents with rates varying from 10 to 20%. Therefore understanding psychiatric disorders of children is a priority in the mental health agenda worldwide. In this publication leading experts discuss topics like Attention-Deficit/Hyperactivity Disorder, schizophrenia, eating disorders as well as substance use disorders. Cross-cultural issues are another interesting aspect as the authors come from diverse cultural backgrounds. Although the focus of this volume is on child biological psychiatry, the authors present findings in an integrative context helping readers to establish the needed connections with the real clinical world. This publication is of valuable reading for child psychiatrists, child psychologists, pediatricians and any mental health professionals working with children and adolescents to update their knowledge in this exciting and new area which is extremely important for implementing contemporary and evidence based treatments for individuals in this age range.