"Formation, Professional Life and Subjectivity of Mental Health Workers" was written based on a master dissertation at the Public Health College - University of São Paulo. Camila is a new, serious, and promising researcher interested in mental health care, a field so difficult to study. This book has precise timing, since it is coming to light in a delicate moment in health care management in the city of São Paulo, in which the direct management by the City Administration is fusing with the management by Non-Governmental Organization for the provision of health care services. In order to understand the problem, the focus of the debate must be on the professional and how they are experiencing this political-managerial condition. Through their "voices which are not always heard", the text shows how that situation affects them and, since this is a two-way street, shows how the professionals affect the institutional dynamics in accordance with their employment insertions in the direct or outsourced management. Certainly, many shall identify themselves with the contents, and that can contribute to reduce their feeling of solitude in their job taking care of others. -Diva Maria Moreno