Book excerpt: Providing a unified introduction to the underlying ideas of the Psychology of Security, Emergency and Risk (PSER), this book highlights the usefulness of a basic psychological knowledge for all those working in this field and summarizes the main dynamic processes associated with the helping relationship: from the neurological pathway of the emotions to the entirely virtual functions of the real Ego, all of these estimable by the oneiric test contained in the appendix. The authors include, in each of the dedicated chapters, the current theories and worked examples to reinforce every argument: from communications rules to the knowledge of terrorism’s cultural background, in its psychological, biological and environmental component. The last important goal at the end of each chapter is to offer the reader, by confronting their own experiences with analysed realities, the possibility to discover the sense of one’s personal identity.