In the last quarter century, several projects emerged to reform mental health services in Latin American and Caribbean countries. Some did not survive the difficulties that inevitably arise in processes of change, and ended up disappearing before the intended changes could be introduced. Others, however, as shown in this publication, were able to overcome difficulties and meet intended objectives, effectively transforming the structure and quality of services. All these projects, including the many that did not survive, were part of one of the richest experiences in the transformation of mental health care worldwide - the experience of mental health reform in Latin America and the Caribbean