Lundy Bancroft has over twenty-five years of experience in the fields of abuse, trauma, and recovery. He has published five books, including the bestseller Why Does He Do That? , Daily Wisdom for Why Does He Do That? , When Dad Hurts Mom, The Batterer as Parent, and Should I Stay of Should I Go? . Lundy has worked with over 1000 abusive men in his counseling groups. He has also served extensively as a custody evaluator, child abuse investigator, and expert witness, and has presented to 350 audiences across the U. S. and abroad.