Sophie Leontopoulou is Associate Professor in Psychology at the Department of Primary Education, University of Ioannina, Greece. She served as coordinator of the Division of Developmental Psychology of the Hellenic Psychological Society, and is founder member of the Positive Psychology Branch of this society, as well as of the Hellenic Association of Positive Psychology. Her theoretical and research interests focus on the area of Positive Developmental Psychology. She has published and presented her work internationally on positive psychosocial development in childhood, adolescence and emerging adulthood, resilience, well-being, flourishing, character strengths, positive emotions and positive psychology interventions.Antonella Delle Fave, MD with specialty in clinical psychology, is Professor of Psychology at the Medical School, University of Milano, Italy. Her research work is centred on the study of flow experience, mental health indicators and daily experience fluctuation across cultures and among individuals experiencing conditions of diversity and adversity. She is involved in research and intervention projects aimed at promoting well-being and mental health among persons with chronic diseases and their family caregivers. Her scientific production includes papers in international peer-reviewed journals, as well as authored and edited academic volumes. She served as President of the International Positive Psychology Association, the European Network of Positive Psychology, and the Società Italiana di Psicologia Positiva. Since 2010 she has been Editor-in-Chief of the Journal of Happiness Studies (Springer).
