Steven A. Safren, Ph.D., is Professor of Psychology at the University of Miami. His grant-funded work related to ADHD includes being the principal investigator of a 5-year NIMH R01 to study the efficacy of CBT for ADHD in adults. Dr. Safren has over 250 publications in the areas of cognitive behavioral therapy, psychopathology, and their application to a variety of clinical problems in adults. Susan Sprich, Ph.D., is Director of the Cognitive-Behavioral Therapy Program at Massachusetts General Hospital and an Assistant Professor in Psychology at Harvard Medical School. She also serves as the Director of Postgraduate Psychology Education at the MGH Psychiatry Academy at Massachusetts General Hospital. She served as the project director of a 5-year study of CBT for adult ADHD and as co-PI of a 3-year study of CBT for adolescent ADHD, both funded by NIMH. Carol A. Perlman, Ph.D., is a Cognitive Behavioral Therapist who specializes in the treatment of mood disorders, anxiety disorders, and adult ADHD. She is a national workshop presenter on Cognitive Behavioral Therapy. Dr. Perlman is the owner of Perlman Psychology Associates, LLC and maintains a private practice in Medway, MA. Michael W. Otto, Ph.D., is Professor of Psychological and Brain Sciences at Boston University. He specializes in the cognitive-behavioral treatment (CBT) of anxiety, mood, and substance use disorders. Dr. Otto has over 370 publications spanning his research interests, and he was identified as a "top producer" in the clinical empirical literature.