Mário Cordeiro is a pediatrician, retired Professor of Paediatrics and Public Health of the Faculdade de Ciências Médicas da Universidade Nova Lisboa. He was President of the Social and Communal Pediatric Section , founder and president in the Association to the Promotion of Childhood Security and of many other organisations related with health promotion e children and adolescents rights. Member of theNational Committees of Woman Health and Child, Children Rights and Good practices in Nursing homes. He ran the Observatório Nacional de Saúde. He is member os the Academia das Letras e das Artes and author to several bestsellers books as the O Grande Livro do Bebé, O Livro da Criança or O Grande Livro do Adolescente.