Mark has been conducting training courses in Expressive Therapies and Sandplay Therapy around Australia for over 30 years, and in South-East Asia for 23 years. Mark has over 28 years of experience as a counsellor and counselling supervisor, and lectured in counselling at the University of Notre Dame Australia, the University of Adelaide, the University of the Sunshine Coast, and for the Australian College of Applied Professions. He is Co-Director of Expressive Therapies Australia.

Mark is the co-author of Emotional First-Aid for Children (1991), Emotional Release for Children (2004), Sandplay & Symbol Work (2001), and Using Expressive Arts to Work with Mind, Body and Emotion (2009). He is also the author of Emotional Healing & Self-Esteem – Inner-Life Skills for Children and Adolescents (2004) and for adults: From Healing to Awakening (1991) and The Healing Journey (1997). He is the author of the Expressive Therapies groupwork program:  Innerspace  (2006).