Jerold J. Kreisman, MD, is a psychiatrist and leading expert on borderline personality disorder. He has written two books on the disorder: the bestselling I Hate You-Don't Leave Me and Sometimes I Act Crazy. He contributes regularly for Psychology Today and is in private practice in St. Louis, Missouri.
Hal Straus is a professional health and medical writer who has penned five books, including the bestselling I Hate You-Don't Leave Me (with Jerold J. Kreisman, MD), and has contributed numerous articles to Ladies' Home Journal, Men's Health, and Redbook.