Mark Greenberg, Ph.D. is the Emeritus holder of The Bennett Endowed Chair in Prevention Research in Penn State’s College of Health and Human Development (he retired in 2019). He is the Founding Director of the Edna Bennett-Pierce Prevention Research Center . He is one of the primary authors of The PATHS® curriculum and has conducted research on its impact since 1981. Through his work with SEL Worldwide (www.selworldwide.org) he has supported the training and quality implementation of the PATHS® curriculum in the US and over 20 countries. He is a senior investigator on national and international research projects including Fast Track, PROSPER, and CARE. He is the author of more than 300 journal articles and book chapters on well-being, and the effects of prevention efforts on children and families. He received the SRCD Distinguished Contributions to Public Policy for Children Award in 2009, and the Presidential Award from the Society for Prevention Research in 2013. He is one of the Founders on CASEL (www.casel.org), One of his current interests is how to help nurture awareness and compassion in our society.