Martha Stout, Ph.D. is a clinical psychologist in private practice and a foremost authority on the subject matter of sociopathy. She served on the faculty in psychology in the department of psychiatry at Harvard Medical School for twenty-five years. Stout specializes in recovery from psychological trauma, post-traumatic stress disorder, and suicide.

Dr. Stout has written the following books:

• Outsmarting the Sociopath Next Door – Outsmarting the Sociopath Next Door: How to Protect Yourself Against a Ruthless Manipulator (2020)
• The Paranoia Switch: How Fear Politics Rewires Our Brains and Reshapes Our Behavior and How We Can Reclaim Our Courage. (2007)
• The Sociopath Next Door: The Ruthless Versus the Rest of Us, (2005)
• The Myth of Sanity: Divided Consciousness and the Promise of Awareness, (2001)