R. Brian Stanfield was a recognized leader in the fields of community development and facilitation. As well as his decades of experience as an educator and researcher, he held the position of Director of Publications at the Canadian Institute of Cultural Affairs for many years. In his career with ICA, he played a role in developing the Technology of Participation (ToP) methods, which are widely used in group facilitation and community work around the world. He was editor of the magazine Edges: New Planetary Patterns, General Editor of the first edition of The Art of Focused Conversation and The Workshop Book, and author of The Courage to Lead. Brian's work made a lasting contribution to the use of participatory practices in facilitation. He died in 2006.

Jo Nelson is a Certified ToP Facilitator, a founding member of the International Association of Facilitators (IAF), and an IAF Certified Professional Facilitator Emeritus. She worked globally with the Institute of Cultural Affairs (ICA) for 50 years, facilitating participatory development projects in many countries, and designing and teaching all of ICA Canada's ToP facilitator training programs. She has used and refined the Focused Conversation Method since its inception, was a contributor to the first edition of The Art of Focused Conversation, and is author of The Art of Focused Conversation for Schools and co-author of Getting to the Bottom of ToP: Foundations of the Methodologies of the Technology of Participation. Jo has received several awards for her contributions to the field of facilitation, and has been inducted into the IAF Hall of Fame. Jo Nelson lives in Toronto, Canada.