Volume One of
The Collected Works of Ken Wilber includes:
   • 
The Spectrum of Consciousness (1977)—one of the founding texts of transpersonal psychology—introduces the full-spectrum model, showing how the psychological systems of the West can be integrated with the contemplative traditions of the East.
   • 
No Boundary: Eastern and Western Approaches to Personal Growth (1979) is a simple yet comprehensive guide to psychologies and therapies available from both Western and Eastern sources.
   •  Several important early articles: "The Psychologia Perennis," "Are the Chakras Real?" and "Where It Was, I Shall Become."
Ken Wilber is the author of over twenty books. He is the founder of Integral Institute, a think-tank for studying integral theory and practice, with outreach through local and online communities such as Integral Education Network, Integral Training, and Integral Spiritual Center.
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