The ICSE Academy offers a wide range of activity formats for professional development: job-shadowing, workshop series and summer schools. These activities bring together STEM teacher students, teacher educators and teachers. Jointly organized by all project countries and taking place across Europe, each format provides enriching European perspectives on STEM education, supported by a distinct spotlight on learning about, from and for each other. The ICSE Academy Lighthouse for STEM teacher education and training in Europe TwinSpace, is a place of inspiration for STEM teachers and teacher educators to join in the ICSE Academy activity formats for professional development.