Dr. Jennifer E. Beer, PhD, combines mediation experience with her cultural anthropology background to lead courses and workshops in mediation, conflict resolution, and cross-cultural communication. She regularly teaches a negotiation course at Wharton (University of Pennsylvania). Author of the Mediator's Handbook and of Peacemaking in Your Neighborhood, she has mediated conflicts and facilitated meetings for communities and organizations for 30 years.

Caroline C. Packard, JD, is an organizational change and conflict response specialist and mediator with 30 years' experience in the field. She led Friends Conflict Resolution Programs for 15 years, and has trained hundreds of mediators. A cum laude graduate of Yale College and NYU School of Law, and a former corporate litigator with extensive formal training in individual and group psychology, Caroline has a special interest in the evolutionary psychology of group conflict and cooperation. She provides mediation and conflict-resolution services and training to organizations, families, and family businesses.

Eileen Stief developed the mediation process and principles documented in The Mediator's Handbook, and trained a generation of mediators to work with community, multi-party, and environmental disputes. Now retired, she led the Friends Conflict Resolution Program's experiment in community dispute settlement and later specialized in environmental mediation.