Parental Alienation: The Handbook for Mental Health and Legal Professionals is the essential “how to” manual in this important and ever increasing area of behavioral science and law. Busy mental health professionals need a reference guide to aid them in developing data sources to support their positions in reports and testimony. They also need to know where to go to find the latest material on a topic. Having this material within arm’s reach will avoid lengthy and time-consuming online research. For legal professionals who must ground their arguments in well thought out motions and repeated citations to case precedent, ready access to state or province specific legal citations spanning thirty-five years of parental alienation cases is provided here for the first time in one place.