When we are finally old enough to realize that we have a personality, it's too late to have a hand in fashioning it. The Breckenridge Enneagram is a state-of-the-art, in-depth guide to understanding the key elements of personality and for facilitating deep, sustainable personal and professional growth. Most people writing about or teaching the Enneagram today trace their roots either directly or indirectly to the work of Claudio Naranjo. A number of popular authors have contributed to the evolution of Enneagram theory, but much of this work has been based on a theoretical foundation of spiritual and metaphysical principles. The Breckenridge Enneagram is set apart from other approaches to understanding and utilizing the nine personality types by its unique focus on a naturalistic, scientific view of personality and psychological processes that are linked to modern advances in the neurosciences.