This issue of Psychiatric Clinics of North America, edited by Drs. Nidal Moukaddam, Veronica Tucci, will cover a wide arrange of topics in Behavioral Emergencies. Topics discussed in the issue include, but are not limited to: Medical Clearance of the Emergency Psychiatric Patient; Altered Mental State, Legal and Ethical Challenges in Emergency Psychiatry; Countertransference in the Clinical Setting; The Use of Psychotherapeutic Measures; Drugs of Abuse; Toxicological Emergencies in Patients With Mental Illness; Management of Depression and Suicidality in the Emergency Department; Special Considerations in the Pediatric Psychiatric Populations; Dementia and Special Considerations in the Geriatric Psychiatric Patient; The Changing Health Policy Environment and Behavioral Health Services Delivery; International Emergency Psychiatry Challenges; and Violence in the Emergency Department, among others.