Book excerpt: Division TEACCH, a statewide program in North Carolina, serves people with autism and their families through the School of Medicine at the University of North Carolina at Chapel Hill. TEACCH was one of the first, and remains one of the most comprehensive and effective, programs in the world working with this population. Over the years the puzzling and unusual behavior problems these children present have been among the most interesting and challenging of the enigmas parents and professionals confront. This book is designed to provide information on these behaviors that will be relevant and useful. As with the preceding books in our series, Current Issues in Autism, this volume is based in part on one of the annual TEACCH Conferences held in Chapel Hill in May. The books are not simply published proceedings of the conference papers. Instead, conference participants are asked to develop full-length chapters around their presentations. Other international experts, whose work is beyond the scope of each conference but related to its major theme, are asked to contribute chapters as well. These volumes provide the most up-to-date information on research and professional practice available on the most important issues in autism.