Robert Stamboliev studied with Drs Hal and Sidra Stone since 1982 and obtained a Masters degree in psychology in California in 1988. He introduced Voice Dialogue and other methods and concepts of transformational psychology in The Netherlands and other European countries. He is founder and director of the Institute for Transformational Psychology (ITP) in Bergen, The Netherlands. The ITP organizes individual and group trainings, an educational program as well as coaching for individuals and organisations. The ITP also organises the international Voice Dialogue conferences in Europe.
Robert wrote the book The Energetics of Voice Dialogue in 1988, the book appeared in English, Dutch, German and French.