People who have been involved in a traumatic event they need professionals who provide them with support quickly and effectively. The situations that require this kind of help are many : an accident, a medical diagnosis negative, the loss of a loved one, an economic setback, but also the consequences of abuse, suicide attempts, natural disasters, terrorism. The so-called crisis intervention, that is, the psychological support in emergencies, can be practiced by doctors, educators, operators of emergency or volunteers in counseling centers, everyone should know how to move in conditions of intense emotional distress for victims. This practical guide provides clear and immediate answers on how to deal with emergencies and exposes the most common symptoms of the various traumas, case studies and protocols that must be adopted.