Ken Wilber

Philosopher Ken Wilber has been mapping the territory of consciousness since the 1970s. His first book, The Spectrum of Consciousness, published by Quest Books, launched the transpersonal psychology movement. Wilber's current best-sellers are Sex, Ecology, Spirituality, and A Brief History of Everything. To visit the author's website, please go 

Other Works By the Author
The Atman Project: A Transpersonal View of Human Development
The Spectrum of Consciousness
Up From Eden: A Transpersonal View of Human Evolution