Glaser, Judith E.  Conversational Intelligence - How Great Leaders Build Trust and Get Extraordinary Results. Brookline, MA: Bibliomotion, Inc., 2014.

Rock, David.  Quiet Leadership - Six Steps to Transforming Performance at Work. New York, NY:  HarperCollins Publishers, 2006

Rock, David.  Your Brain at Work - Strategies for Overcoming Distraction, Regaining Focus, and Working Smarter All Day Long.  New York, NY:  HarperCollins Publishers, 2009

Rock, David, and Linda J. Page, PhD.  Coaching with the Brain in Mind - Foundations for Practice.  Hoboken, NJ:  John Wiley and Sons, Inc., 2009

Rock, David, Dr., and Dr. Al Ringleb.  Handbook of Neuroleadership. Collection of Journal Papers, 2013

Riso, Don Richard, and Russ Hudson. The Wisdom of the Enneagram.  New York, NY: Bantam Books, 1999

Chestnut, Beatrice, Dr.  The Complete Enneagram - 27 Paths to Greater Knowledge.  USA: She Writes Press, 2013

Chestnut, Beatrice.   The Enneagram System’s 27 Personality Subtypes.  2012

Daniels, David, MD (Stanford University Medical School) and Virginia Price, Ph.D. The Essential Enneagram - The Definitive Personality Test and Self-Discovery Guide.  New York, NY:  HarperCollins Publishers, 2009

Kegan, Robert, and Lisa Laskow Lahey.  Immunity to Change.  Boston, MA:  Harvard Business School Publishing, 2009

Jeffers, Susan, Ph.DEmbracing Uncertainty.  New York, NY:  St. Martin’s Press, 2003

Goleman, Daniel.  Emotional Intelligence.  New York, NY:  Bantam Books, 1995,

Brown, Brene, Ph.D, LMSW.  Daring Greatly.  New York, NY:  Penguin Group, 2012

Langer, Ellen J.  Mindfulness - 25th Anniversary Edition.  Boston, MA:  Da Capo Press, 1989, 2014

Dweck, Carol S.  Mindset - The New Psychology of Success.  New York, NY:  Ballantine Books, 2008

Halvorson, Heidi Grant.  No One Understands You And What To Do About It.  Boston, MA:  Harvard Business School Publishing, 2015

Hoffeld, David.  The Science of Selling - Proven Strategies to Make Your Pitch, Influence Decisions, and Close the Deal.  New York, NY:  Penguin Random House LLC, 2016