Prof. Jair de Jesus Mari is Professor of Psychiatry, Department of Psychiatry, Universidade Federal de São Paulo, Brazil. He trained at Fundação Universitária do ABC, São Paulo, the Civil Servants' Hospital, São Paulo and the Institute of Psychiatry, London. His special interests include psychiatry in primary care, schizophrenia and posttraumatic stress disorder. He took his medical degree in the Santo Andre ABC Medical Faculty (1977), completed residency training in psychiatry at the Civil Servant State Hospital of São Paulo (1979), and a Ph.D. (1986) at the Institute of Psychiatry, Kings College. In 1987, he became a professor in the Department of Psychiatry, Federal University of São Paulo. In completed a post-doc at McMaster University, where he studied clinical epidemiology, systematic reviews and meta-analysis. He became a full professor of Psychiatry at the Federal University of São Paulo in 1996. He published more than 200 scientific papers and supervised several post-graduation students. He is a top level researcher from the National Research Brazilian Council (CNPq) with studies in e.g. Psychiatric Epidemiology, Systematic Reviews, Sociocultural Issues on the Course of Schizophrenia, Health Services Evaluation and Violence and Mental Health. He is currently Head of the post-graduation program of the Department of Psychiatry of the Federal University of São Paulo, and Honorary Visiting Professor, in the Health Services and Population Research Department, Institute of Psychiatry, King's College, London.