Glenn is the current editor of the Australian and New Zealand Journal of Family Therapy and in 2008 received its special award for distinguished contribution to family therapy.

He has published more than 20 original articles and book chapters on a range of psychology and family therapy topics and is co-editor with David Pare from Canada of Collaborative Practice in Psychology and Therapy (2004; New York: Haworth). In 2010 he was awarded a PhD at University Technology Sydney on the topic of the ethical relation in therapy, which he applied to issues like chronic child illness and adolescent depression and self-harm.