The eighth edition of the seminars on How to write a scientific paper was held in Societat Catalana de Seguretat i Medicina del Treball (Barcelona, Spain), February, 22-23 2007. These seminars on this topic are targeted to postgraduates in health sciences with the aim to improve their knowledge and skills to write and publish scientific papers. Dr. Esteve Fernández, from the Institut Català d’Oncologia and editor of the Spanish journal Gaceta Sanitaria, and Ana M. García, from de Department of Preventive and Public Health at the Universitat de València and editor of Archivos de Prevención de Riesgos Laborales, are chairing all these seminars.