Louis Hoffman, PhD, is a licensed psychologist in private practice. He provides training and supervision through the International Institute for Existential-Humanistic Psychology and teaches at Saybrook University.

Heatherlyn Cleare-Hoffman, PsyD, is a licensed psychologist originally from the Bahamas. She has worked as a faculty member, supervisor, and staff psychologist at various graduate and training programs in psychology.

Nathaniel Granger, Jr., PsyD, is a past president of the Society for Humanistic Psychology (APA Division 32), and a recipient of the Hari Camari Early Career Award. He also works as an adjunct professor at Saybrook University.

David St. John, PhD, is the executive director of FairSky Foundation, a nonprofit organization dedicated to the promotion of psychological, social, and ecological justice. He also teaches at the University of Detroit Mercy and Schoolcraft College.