Mental health in general, and psychiatry in particular, seem to find themselves in crisis situations. In the field of psychiatry, there have been many attempts to improve the situation of patients, with variable results and numerous ups and downs. Remembering the past seems to be a necessary, although not sufficient, condition to try not to repeat mistakes. In this book, the psychiatrist Marcelino López raises different aspects of the field of mental health, covering theoretical and operational topics, and focusing on movements and trends that are especially relevant.