Kata Csizér is Professor at Eötvös Loránd University, Hungary. Her research focuses on foreign language learning motivation, and she is Associate Editor of the Studies in Second Language Learning and Teaching journal and Co-Editor of the monograph series Applied Linguistics in the 21st Century, published by Akadémiai Kiadó. Dávid Smid is Postdoctoral Researcher at the University of Graz, Austria. His research interests include language learner psychology, teacher psychology and positive psychology, and he is Co-Editor-in-Chief of the Journal for the Psychology of Language Learning. Anna Zólyomi is Assistant Professor at ELTE Eötvös Loránd University, Hungary. Her research explores individual differences, implicit and explicit learning and differentiated instruction, and she is Section Editor at GiLE Journal of Skills Development. Ágnes Albert is Assistant Professor at ELTE Eötvös Loránd University, Hungary. Her research focuses on task-based language learning, foreign language learning-related emotions and flow, and she is Associate Editor of the Studies in Second Language Learning and Teaching journal.