Jonathan R. H. Tudge is a Professor in the Department of Human Development of Family Studies at the University of North Carolina, Greensboro. He has long been interested in the relations among culture, everyday activities and interactions, and development. His books include The Everyday Lives of Young Children: Culture, Class, and Child Rearing in Diverse Countries (Cambridge, 2008), and he has co-edited two other books related to culture and youth development. With Lia Beatriz de Lucca Freitas, he has been studying the development of gratitude in children and adolescents for the past decade, with the generous support of the John Templeton Foundation.
Lia Beatriz de Lucca Freitas is a Professor of Psychology at the Institute of Psychology at the Universidade Federal do Rio Grande do Sul, Brazil. She gained her Ph.D. in psychology from the University of São Paulo. Her main interests are in moral development, specifically moral virtues and the construction of values. She has authored The Theory of Morality in Jean Piaget's Work: An Unfinished Project (2003) and co-edited Reflections on Moral Education (2017), both published in Portuguese. She is a Co-Principle Investigator on a multi-year cross-cultural project on the development of gratitude in children and adolescents, funded by the John Templeton Foundation.