Bernie Neville (1938-2021) was a De La Salle Brother before marrying and having a family, an academic, counsellor, and author with a deep interest and presence in person-centred psychology, Jungian psychology, and process philosophy. He was a Professor in the Faculty of Higher Education, Swinburne University of Technology, and at the Phoenix Institute, both in Melbourne, Australia.

Keith Tudor is Professor of Psychotherapy at Auckland University of Technology, Auckland, Aotearoa New Zealand, where he is also co-lead of a Group for Research in the Psychological Therapies. He is an internationally-recognised author; his latest books include (with David Key) Ecotherapy: A Field Guide (Karnac, 2023).