Valerie L. Gaus, PhD, is a clinical psychologist in private practice in Long Island and New York City. Her focus is treating mental health problems in adults with autism spectrum disorder, intellectual disability, and other learning and developmental disorders. Since receiving her doctorate in 1992, she has approached her work with a cognitive-behavioral orientation. Dr. Gaus serves on the advisory board of the Asperger Syndrome and High Functioning Autism Association and the grant review committee of the Organization for Autism Research, and instructs an advanced training course through the Swedish Psychological Association. Dr. Gaus has written numerous articles and chapters on mental health issues in developmental disabilities and has lectured extensively in the United States and internationally. She is the author of the self-help resource Living Well on the Spectrum as well as a book for therapists, Cognitive-Behavioral Therapy for Adults with Autism Spectrum Disorder, Second Edition.