Towle (psychiatry, pediatrics, and public health, New York Medical College), a clinical child psychologist who works with patients with early childhood developmental disabilities and autism spectrum disorders, offers a guide to identifying young children with autism spectrum disorders. The guide uses figures and photos to build the observation skills of trainees and professionals, including psychologists, psychiatrists, pediatric neurologists, nurses, social workers, pediatricians, family doctors, speech-language pathologists, special educators, and occupational and physical therapists, and increase their understanding of the communication, play, social, cognitive, and sensory information processing of these children. She discusses the importance of early identification, the variability in symptom presentation, and behaviors related to communication, social interaction, joint attention, and reciprocity, and repetitive and sensory behaviors, as well as how these observations can be integrated in the context of a professional evaluation. Annotation ©2013 Book News, Inc., Portland, OR (booknews.com)