"Living with a Jekyll and Hyde, forever walking on eggshells, is no way to live. It takes its toll physically and mentally, whether the person's problem is Borderline Personality Disorder or something else. In this exciting new book, Engel gives hope to millions by showing them how to get off the emotional roller coaster no matter what their situation is."
--Randi Kreger, coauthor of Stop Walking on Eggshells: Taking Your Life Back When Someone You Care about Has Borderline Personality Disorder and founder of BPDCentral.com

"Beverly Engel traverses a wide spectrum as she explicates The Jekyll and Hyde Syndrome. She boils down the common essences of various psychiatric disorders such as Borderline and Narcissistic Personality Disorders and Post-Traumatic Stress Disorder to describe the conflicted bipolar Shadows of those whose expressions to the world vary so widely. Easy-to-understand explanations and advice in dealing with individuals with changeable personalities allow The Jekyll and Hyde Syndrome to describe the Yin and Yang of those engaged in this monumental human struggle."
--Jerold J. Kreisman, m.d. coauthor of Sometimes I Act Crazy: Living with Borderline Personality Disorder and I Hate You, Don't Leave Me: Understanding the Borderline Personality The Emotionally Abusive Relationship

"Beverly Engel clearly and with caring offers step-by-step strategies to stop emotional abuse . . . helping both victims and abusers to identify the patterns of this painful and traumatic type of abuse."
--Marti Tamm Loring, Ph.D., author of Emotional Abuse: The Trauma and the Treatment Loving Him without Losing You

"A powerful and practical guide to relationships that every woman should read."
--Barbara De Angelis, Ph.D., author of Secrets about Life Every Woman Should Know and How Did I Get Here?