David Lasagabaster is Professor of Applied Linguistics at the University of the Basque Country, where he received his PhD in 1997 with a thesis entitled “Creativity and metalinguistic awareness: their influence on the learning of English as L3”. He has been a visiting scholar at several universities, such as the Centre for Immersion and Multilingualism (University of Vaasa, Finland), the Ontario Institute for Studies in Education (University of Toronto, Canada), the University of Nevada, Reno (USA), the School of Languages and Linguistics (the University of Melbourne, Australia), Universidad Nacional Autónoma de México (UNAM), Graduate Center, the Central University of New York (USA), and University of Oxford (UK). He has been involved in teacher education in Spain for several years and has published on second/third language acquisition, CLIL (Content and Language Integrated Learning), attitudes and motivation, and multilingualism. He has published widely in international journals, books and edited books. Among others, he has co-edited “CLIL in Spain: Implementation, Results and Teacher Training” (Cambridge Scholars Publishing, 2010); “English-medium Instruction at Universities: Global Challenges” (Multilingual Matters, 2013); “Motivation and Foreign Language Learning: From Theory to Practice” (John Benjamins, 2014); and “CLIL experiences in secondary and tertiary education: In search of good practices” (Peter Lang, 2016).