Dr. Mark Cunningham is a clinical and forensic psychologist whose practice is national in scope. He is board-certified in clinical psychology and in forensic psychology by the American Board of Professional Psychology (ABPP), and is licensed in 17 states. Dr. Cunningham earned his Ph.D. in clinical psychology from Oklahoma State University and did postdoctoral study at the Yale University School of Medicine. He is a nationally recognized scholar and expert witness regarding capital sentencing determinations. He has provided expert testimony at capital sentencing in more than 200 cases and authored over 60 peer-reviewed articles, chapters, case studies, and commentary. Dr. Cunningham authored a text on best practices in evaluations for capital sentencing. He has served on the editorial boards of three journals and has been an ad hoc reviewer for 19 others. The international John Maddox Prize recognized Dr. Cunningham with a commendation. His scholarship and practice have also been honored with the National Register of Health Service Psychologists A. M. Wellner, Ph.D. Lifetime Achievement Award, the American Psychological Association Award for Distinguished Contribution to Research in Public Policy, the Texas Psychological Association Award for Outstanding Contribution to Science, and election as a Fellow of the American Psychological Association.