Wilfried Ehrmann: Consciousness in Evolution. Seven Steps of Integral Healing. Tao 2014, ISBN 978-3-95802-174-7 (paperback)

for order

Birgit M. Ehrmann-Ahlfeld: Mentally Fit Forever. 2004

for order

Ken Wilber: Integral Psychology (2000)

Ken Wilber: Integral Spirituality (2006)

Ken Wilber: The Atman Project: A Transpersonal View of Human Development (1980)
Antonio Damasio: The Feeling of What Happens (1999)
Humberto Maturana and Francisco Varela: The Tree of Knowledge (1998)
Helen Palmer: The Enneagram - Understanding Yourself and the Others in Your Life (1988)
Robert Kegan: In Over our Heads (2003)
Robert Kegan: Immunity to Change: How to Overcome It and Unlock the Potential in Yourself and Your Organization (2009)
Eckhart Tolle: The Power of Now (1999)

Steve McIntosh: Integral Consciousness and the Future of Evolution (2007)