This book is written for the parents of children with autism or pervasive developmental disorders. It is also written by a parent and takes the perspective of one who has investigated this topic thoroughly in the pursuit of treatment and training options for his own daughter. As such this book serves well as a concise description of applied behavior analysis as it is applied to the treatment of young children. It is written in layman's terms with the goal of informing and assisting parents in not only evaluating this treatment option but also in actually implementing an in-home ABA program.