COGNITIVE BEHAVIORAL THERAPY

What is Cognitive Behavioral Therapy?
https://beckinstitute.org/get-informed/what-is-cognitive-therapy/

David Burns, M.D.: Author of Feeling Good
http://psychcentral.com/lib/2009/15-common-cognitive-distortions/

Martin Seligman, Ph.D.: Author of Learned Optimism and Authentic Happiness
http://www.authentichappiness.sas.upenn.edu/Default.aspx

Byron Katie: Author of Loving What Is
http://www.thework.com/index.php

NEUROPLASTICITY

Dan Siegel, M.D.: Author of Mindsight
http://drdansiegel.com/

THE ENNEAGRAM

David Daniels, M.D.: Author of The Essential Enneagram
http://drdaviddaniels.com/
The Essential Enneagram
The Enneagram, Relationships, and Intimacy
Enneagram Online Personality Test