Thrasyvoulos Tsiatsos is currently Associate Professor in the School of Informatics of Aristotle University of Thessaloniki, Greece and a member of the Software and Interactive Technologies (SWITCH) Lab. He obtained his Diploma, his Master's Degree and his PhD from the Computer Engineering and Informatics Department of Patras University (Greece). His research interests include Virtual Learning Environments, Serious Games and Gamification and Open and Distance Education. He has published more than 220 papers in Journals and in well-known refereed conferences and he is co-author in 4 books. He has been a PC member and referee in various international journals and conferences. He was coordinator or member of the research team in more than 40 R&D national and international projects in the area of Technology Enhanced Learning. Also, he is IEEE member.Stavros Demetriadis, is Professor at the School of Informatics, Aristotle University of Thessaloniki (AUTh), Greece. He holds a BSc degree in Physics, MSc in Electronic Physics, and PhD in Multimedia educational technology from Aristotle University of Thessaloniki. He teaches courses and conducts research in the broader area of technology-enhanced learning with emphasis on Computer-supported collaborative learning (CSCL), Adaptive hypermedia systems for learning, Educational robotics and Tangible interfaces for programming, Conversational agents, Multimedia learning, Cognitive training technologies. He has published more than 150 research papers in international scientific journals (with IF) and international/national conference proceedings with more than 3100 third party citations. He is member of the scientific committee in several top ranking international Conferences each year (such as IEEE ICALT, ECTEL, CSEDU, etc.). His supervised PhD project Cubes Coding was presented with awards in two international competitions (Open Education Challenge 2014 and NUMA-2014). His conference articles have received three times Best paper awards and one article has been highlighted as 'spotlight paper' by the IEEE Transactions of Learning Technologies journal. Since 1995 he has participated in many AUTH research projects and currently is project leader in the EU funded Erasmus+ KA2 project: colMOOC: Integrating Conversational Agents and Learning Analytics in MOOCs . He is a Python enthusiast and offers regularly a MOOC on Introductory programming with Python from Open edX platform in Greek. Tassos Anastasios Mikropoulos is Professor in the Department of Primary Education, School of Education, University of Ioannina, Ioannina, Greece. Dr. Tassos Anastasios Mikropoulos holds a B.Sc. in Physics and a Ph.D. in optical signal processing from the University of Athens. He is the director of the Educational Approaches to Virtual Reality Technologies laboratory, EARTH lab . He is the elected chair of the Hellenic Association of ICT in Education - HAICTE. His research interests are on educational technology, virtual reality in education and educational neuroscience. Mikropoulos work has been published in many referred journals and conferences with more than 2000 citations. He is a member of the editorial board and reviewer for many international journals. He has been project director, principle investigator and consultant in numerous research & development and educational projects. He also serves as a consultant for the Greek Ministry of Education in topics such as digital school, educational software, in-service teachers further training.Vasileios Dagdilelis is Professor in the Department of Educational and Social Policy, School of Social Sciences, Humanities and Arts, University of Macedonia, Thessaloniki, Greece. He obtained his Diploma in Mathematics from Aristotle University of Thessaloniki, his Master's Degree from the University Joseph Fourier, Grenoble, France and his Ph.D. from the Department of Applied Informatics, University of Macedonia. His research interests include Didactics of Informatics, Applications of Informatics and Computer Science to Education, Educational Robotics, Distance Learning, Adult Education. He has published more than 100 papers in Journals and in well-known refereed conferences and he is co-author in several books. He has participated in several R&D projects as well and currently participate in the Horizon European Project STIMEY, for Educational and Social Robotics.
