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Ken WilberKen Wilber
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The Spectrum of Consciousness Paperback – 9 December 1993
by Ken Wilber (Author)
4.6 4.6 out of 5 stars (180)
Book 2 of 6: Quest Books
Wilber's groundbreaking synthesis of religion, philosophy, physics, and psychology started a revolution in transpersonal psychology. He was the first to suggest in a systematic way that the great psychological systems of the West could be integrated with the noble contemplative traditions of the East. Spectrum of Consciousness, first released by Quest in 1977, has been the prominent reference point for all subsequent attempts at integrating psychology and spirituality.
385 pages
Product description
From the Back Cover
Like radiation and light, consciousness, suggests Wilber, establishes a multiplicity of aspects as it 'steps down' into time and space. Thus, as a spectrum, it can be studied legitimately on one or more of its 'wavelengths.' Viewing consciousness in this way, we can see that seemingly disparate disciplines each speak to a different wavelength of awareness.
Product details
Publisher : Quest Books
Publication date : 9 December 1993
Edition : 2nd ed.
Language : English
Print length : 385 pages
ISBN-10 : 0835606953
ISBN-13 : 978-0835606950
Item weight : 522 g
Dimensions : 15.24 x 2.03 x 22.61 cm
Book 2 of 6 : Quest Books
Best Sellers Rank: 75,753 in Books (See Top 100 in Books)12 in Spiritually Integrated Therapy
268 in Chakras
283 in Psychology Movements
Customer Reviews:
4.6 4.6 out of 5 stars (180)
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Customer reviews
4.6 out of 5 stars
4.6 out of 5
180 global ratings
5 star
Alistair Douglas
5.0 out of 5 stars Nothing major, just interesting.Reviewed in the United States on 5 July 2025
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Absolutely love the book. Valuable information throughout.
Noticed something peculiar about the book I received. The spine is a misprint.
I reckon it gives it character. Wondering if anyone else’s came this way?
It doesn’t seem to have any other issues or flaws as I said the book is amazing through and through. It’s only today I noticed while looking at the book that “Spectrum” is misspelled. Gave me a chuckle.

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Kindle Customer: Padmanaban
5.0 out of 5 stars Structure of consciousness- a clear viewReviewed in India on 10 August 2020
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I have read all his books. This is the last of my choice chronologically though the first for the author. In his foreword he had warned in advance how he interchanged the meaning for terms involution and evolution. So I could avoid confusion. The general scheme of his ideas is still valid though now greatly refined. I would choose the same rating to all his writing. His writing never leaves anything for guessing.
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Jonathan Appleby
5.0 out of 5 stars The Truth, in a step by step logical processReviewed in the United Kingdom on 7 February 2017
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This book was probably the hardest but most rewarding book I've ever read. As someone who brought up on science and not religion, this book helped to merge the two
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Stephanie E Witechowsky
5.0 out of 5 stars Delivered on time; good foundational readingReviewed in the United States on 12 June 2024
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This book was delivered well and on time. Wilber has a good all around basis for reviewing the subject of consciousness and touches upon the other authors in the field as well. A good starting book for curious readers.
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Autumn Fall
5.0 out of 5 stars Wilber's books are highly recommended readingReviewed in the United Kingdom on 23 October 2016
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Ken Wilber's extensive understanding and his ability to communicate this is remarkable.
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