A graduate in journalism from the Universitat Autònoma de Barcelona and in directing and playwriting from the Institut del Teatre. His work has been translated into 20 languages and premiered in some 30 countries. He has received various accolades, including the Frederic Roda prize at the 45th Night of Santa Llúcia – Catalan Literature Festival and, on two occasions has won the prestigious Born Prize. He is the author of various adaptations and has directed plays written by himself and by other playwrights. He is teacher of dramaturgy on the Performing Arts Degree course at the Universitat de Girona and regularly on courses at the Sala Beckett, as well as at national and international workshops. Since 2013 he has been a member of the reading committee at the Teatre Nacional de Catalunya.
As part of the FAB Community, Josep Mario Miro took part in the EU project Fabulamundi. Playwriting Europe. Beyond Borders.
For the WIENER WORTSTAETTEN he wrote one episode for the international writing project The end of Tolerance.