Vivian Nelson and Bill Roller.

Vivian Nelson and Bill Roller.

Vivian Nelson is a former director of the Board of Directors of the International Human Learning Resources Network, established in 1969 by family therapy founder, Virginia Satir. Together with her co-therapist, Bill Roller, Vivian has published the Art of Co-therapy: How Therapists Work Together (Guilford Publications), a chapter in Kaplan & Sadock's Comprehensive Group Psychotherapy (Williams and Wilkens) and produced the six hour video companion to his text, The Promise of Group Therapy (Jossey- Bass). They have presented for professional audiences internationally, most recently in Buenos Aires, Barcelona, London, Sao Paulo, and Matsue, Japan. They were featured speakers at the 2010 Annual Conference of the Mid-Atlantic Group Psychotherapy Society in Richmond, Virginia. Vivian retired as a clinician in 2016, yet she remains active on the board of directors of the Berkeley Group Therapy Education Foundation which she founded with Bill Roller.

Bill Roller is founder and president of the Berkeley Group Therapy Education Foundation, a non profit organization dedicated to the education of the public in the purpose and value of group therapy and the development of comprehensive programs and materials for the training of group psychotherapy professionals. The Foundation sponsors symposia in the public interest at law schools and professional conferences nationally and internationally. Most recently, it has conducted a landmark social psychology study with Philip Zimbardo looking at the group dynamics that energize nonviolent courageous action in defense of ethical principles and people in need. 

He is a Life Fellow of the American Group Psychotherapy Association, Chairman of the Ethics Committee of the Board of Directors of the International Association for Group Psychotherapy and Group Processes (2006-2012), and past Co-Chairman of the Group Therapy Symposium, Department of Psychiatry, University of California School of Medicine, San Francisco. 

He is author of more than 40 publications, including books, scientific articles, book chapters, videotapes, and a biography of Paul Shilder- a pioneer in group analysis and mentor to S.H. Foulkes.