Birgit Pepin has taught mathematics in schools in England before starting her PhD in mathematics education, which linked to her background: being born in Germany, and having lived in France and England, she investigated mathematics teachers’ work in the three countries, in particular with respect to their mathematical and pedagogic practices, and the influence of educational and cultural traditions on their work as a mathematics teacher. After finalizing her PhD she worked in UK higher education institutions (Open University, Oxford Brookes University; Manchester University), and later moved to Norway (2009-2014) for her first full professorship, and then to the Netherlands (since 2015). Her teaching and research focus on mathematics curriculum materials (including digital resources), and teacher pedagogy and professional learning, especially in mathematics and science education in secondary schooling and in higher education STEM. Her research and development projects have been carried out with support from agencies including the UK Economic and Social Research Council (ESRC), the European Union (3 EU projects), and selected national foundations (e.g. 4TU AMI). Birgit is former Editor-in-Chief of the international research journal, International Journal for Research and Method in Education, and has edited several special issues of international mathematics education journals (e.g. ZDM Mathematics Education; Journal for Mathematics Teacher Education). She has been on numerous international boards (e.g. DZLM- Deutsches Zentrum fuer Lehrerbildung Mathematik; British Society for Research into Learning Mathematics), and she is member of several scientific and professional associations (e.g. KIVI- The Royal Institute of Engineers).