Cutting edge volume devoted to optimal adult development.

Angela H. Pfaffenberger has a PhD in psychology and is an independent researcher in personality theory. She maintains a private practice as a psychotherapist and acupuncturist in Salem, Oregon.

Paul W. Marko has a PhD in psychology from Saybrook Graduate School and Research Center. He is a developmental psychologist who works with both organizations and individuals.

Allan Combs is Professor of Transformative Studies at the California Institute of Integral Studies and Professor Emeritus of Psychology at the University of North Carolina at Asheville. His many books include Consciousness Explained Better: Towards an Integral Understanding of the Multifaceted Nature of Consciousness.