Matthew McKay, PhD, is a professor at the Wright Institute in Berkeley, CA. He has authored and coauthored numerous books, including The Dialectical Behavior Therapy Skills Workbook, Self-Esteem, and Couple Skills, which have sold more than a million copies combined. He received his PhD in clinical psychology from the California School of Professional Psychology, and specializes in the cognitive behavioral treatment of anxiety and depression. Gail Steketee, PhD, is a professor and co-chair in the department of clinical practice at the School of Social Work at Boston University. She is coauthor of Buried in Treasures.