After his very clear and documented introduction, the head of this group, Olivier Douville (who needs no introduction!) Gives way to clinicians, marked by psychoanalysis and anthropology, who each speak from a practice clearly and finely exposed. The subjective effects of exile and exclusion are studied, not as external facts to the clinician, but asking questions to the institution and its actors. So we have an amazing book, rich, generous and necessary. The chapters on exile (O. Douville), the vast exclusion (M. Benhaïm, S. Zucca), political violence (Mr. Cousein) are anthological. Essential reading for professional and student, but also for increasing précarisations concerned citizen.