Athena Daniilidou is an Adjunct Professor of Educational Psychology in the Department of Educational and Social Policy at the University of Macedonia, Greece. She holds a Ph.D. and a postdoctoral degree in Educational Psychology, as well as an M.A. in Adult Education and a B.Ed. from the Department of Primary Education at Aristotle University of Thessaloniki. She has been awarded a distinction, including commendation and financial support, by the Psychological Society of Northern Greece (PSEVE) for her doctoral studies. She has received multiple awards for her oral presentations at academic conferences. Her research focuses on positive psychology with particular emphasis on resilience, emotional intelligence, meaning in life, and teacher well-being. She has extensive university-level teaching experience, having independently taught a broad range of courses in psychology and education. She has contributed to several national and international research projects, including Erasmus+ initiatives, and is actively involved in academic networks. She is a member of EARLI and co-leads the Division of Positive Psychology within the Hellenic Psychological Society. Her work has been widely published and presented internationally, and she serves as an editor and reviewer for several peer-reviewed journals.

Christos Pezirkianidis is an Assistant Professor of Positive Psychology and a member of the Positive Psychology Lab at the Panteion University of Social and Political Sciences. He worked as a Captain Psychologist in the Greek Air Force for 14 years and as a researcher and trainer in 15 national and EU projects regarding positive and counseling psychology interventions and psychological profiling of unemployed, teachers, school and university students, low-skilled adults, Hellenic and UN army and police officers. He has presented his research work at scientific conferences, books and journals, educational seminars, social organizations and university institutions. His research interests concern the understanding of how people flourish psychologically in their everyday lives and through adversity, the creation of a Greek Wellbeing Observatory, and the implementation of Positive Psychology Interventions focusing on prevention, mental health promotion, building positive relationships, strengths of character, and psychological resilience. He is a board member of the Hellenic Association of Positive Psychology, the coordinator of the Positive Psychology branch of the Hellenic Psychological Association, a member of the International Positive Psychology Association, the Psychological Society of Northern Greece, the American Psychological Association, as well as the Hellenic Scientific Association of Peer Counseling.