On 12 July 2022, OBVIE held the 9th International Seminar of Education and Training Observatories entitled "The Redefinition of the Portuguese School" at the Faculty of Psychology and Education Sciences of the University of Porto. Under the motto of rethinking possible ways of redefining the Portuguese school, we invited various schools, teachers and researchers to share their practices on a day full of reflection and learning. To mark this moment, we are publishing this E-Book with the contributions of all those present, whom we would like to thank for sharing.