Katerina Tzafilkou is an adjunct lecturer at the School of Science and Technology at the International University of Greece, and an adjunct academic associate at Hellenic Open University (GR). She also is a postdoctoral researcher in the field of technology-enhanced learning (TEL) and emotion recognition at the University of Macedonia (GR), and she works as a research partner at the Smart and Mobile Learning Environments (SMILE: https://smile.uom.gr) Lab of the University of Macedonia (GR). She holds a Ph.D in the field of Human-Computer Interaction, an M.Sc. degree in Information Systems, and a B.Sc. in International and European Studies from the University of Macedonia (GR). She has working experience in several research projects and she has published several research studies in peer-reviewed high-impact international journals.