This issue serves as an indispensable, up-to-the-minute review of autism treatments. Articles are divided into two sections. Pharmacologic Approaches:: Treating Core Social and Communication Impairment, Treating Interfering Repetitive and Compulsive Behavior, Treating Aggressive Behavior, Treatment of Inattention & Hyperactivity, Assessment and Pharmacologic Treatment of Sleep Disturbance, Novel Biological Treatments. Nonpharmacologic Approaches:: Behavioral Therapy for the Child Psychiatrist, Interventions to Improve Communication, Social Skills Training, Treating Self-injury and Severe Aggression:: Behavioral Approaches, Disturbances in Sleeping and Eating:: Behavioral Approaches, Educational Interventions:: Collaborating with Schools to Create an Optimal Learning Environment.