Robert Shetterly
Americans Who Tell The Truth
Dutton Books, 2005

This collection of fifty role models dare to raise the standards for ethical living. Well-known figures such as Rachel Carson, Dwight Eisenhower, Martin Luther King, Jr., and Mark Twain (as well as lesser-knowns) are depicted visually along with quotes that share their wisdom on issues ranging from social and environmental justice to aspects of character. Learn more from the project website, Americans Who Tell the Truth.

Baron, Renee, and Wagele, Elizabeth
The Enneagram Made Easy: Discover the 9 Types of People
New York: HarperCollins, 1994

This easy-to-read overview gives light-hearted coverage of the essential components of the Enneagram, complete with cartoons!

Baron, Renee
What Type Am I? Discover Who You Really Are
New York: Penguin Group, 1998

A person's innate temperament is one of the factors playing into his or her Enneagram type. Katharine Briggs and daughter Isabel Briggs Myers in the mid-1900s, standing on the shoulders of Jung, developed a system to identify preferences in the four dimensions of extroversion-introversion (how we get energized), sensing-intuition (how we gain information), thinking-feeling (how we make decisions), and judging-perceiving (how we organize our lives). Baron's easy-to-read overview gives light-hearted coverage of these essential components of the Myers-Briggs Type Indicator, complete with cartoons!

Chestnut, PhD, Beatrice
The Complete Enneagram: 27 Paths to Greater Self-Knowledge
Berkeley, California: She Writes Press, 2013

To answer the question of why individuals operating out of the same Enneagram number can appear to be so different, Chestnut offers an expanded view on subtypes (instinctual biases or goals). Leading to the "27 Paths", for each of the nine Enneagram types, she explores the three instincts of self-preservation, social interaction, and sexual (or one-on-one) bonding. The widely held premise is that though all three instincts operate in all of us, usually one will be dominant in an individual, consequently creating different "flavors" of an Enneagram type.

Keirsey, David
Please Understand Me: Character and Temperament Types
Prometheus Nemesis Book Company, 1984

The author uses the Myers-Briggs Type Indicator to arrive at four basic temperaments, but offers the Keirsey Temperament Sorter as an alternative to the official MBTI. After an academic treatment of the main content, he examines pairings when finding a mate, temperament in children, and leadership styles.

Keirsey, David
Please Understand Me II: Temperament, Character, Intelligence
Prometheus Nemesis Book Company, 2006

Keirsey expands the content of his previous book, mapping each of the four basic temperaments to a cultivation of a certain kind of intelligence: tactical, logistical, diplomatic, or strategic.

Palmer, Helen
The Enneagram: Understanding Yourself and the Others in Your Life
New York: HarperOne, 1988

Palmer is regarded as one of the foremost instructors of the Enneagram today. She may be best known for her extensive use of panels (groups of individuals with the same type) and training program, The Enneagram in the Narrative Tradition. She has said, "The best way to recognize your type is by listening to people who share your own point of view. When those who know their type tell you how they love and work, you know you're either like them or you're not." Palmer's book content is distinguished from other comprehensive reviews of the Enneagram by reflections on her personal study of attention, intuition, and type.

Palmer, Helen
The Enneagram in Love & Work: Understanding Your Intimate & Business Relationships
New York: HarperOne, 1995

Palmer offers another fairly comprehensive review of the Enneagram but with a focus on how types come together in love and work relationships.

Reynolds, Susan
The Everything Enneagram Book
Massachusetts: Adams Media, 2007

While it is one of those "Everything" books, the author offers a very accessible interpretation of the typical content of other Enneagram books.

Riso, Don, and Hudson, Russ
Personality Types: Using the Enneagram for Self-Discovery
New York: Houghton Mifflin, 1996

This is definitely one of the more comprehensive books on the Enneagram, written by two internationally-known scholars, writers, innovative thinkers, and developers of the Enneagram in the world today (though Don Riso is now deceased). Cofounders of The Enneagram Institute based in New York, they present in their revised edition original discoveries along with an expansive discussion of the origins and history of the Enneagram. In their own words, "Throughout the book, we have presented a more refined theoretical understanding of the Enneagram as a system, including more new information on the wings, the Directions of Integration and Disintegration, the Triads, and the correlations with other theories of personality."

Riso, Don, and Hudson, Russ
The Wisdom of the Enneagram: The Complete Guide to Psychological and Spiritual Growth for the Nine Personality Types
New York: Bantam Books, 1999

Riso and Hudson once again inform us of all the basics of the Enneagram of personality types, but now with an emphasis on awareness, presence, and the Spiritual Journey. Truly inspiring.

Riso, Don, and Hudson, Russ
Understanding the Enneagram: The Practical Guide to Personality Types
Boston, New York: Houghton Mifflin, 2000

In another revised edition, all of the basics of the Enneagram are again all included along with additional highlights: misidentifications, short phrases for each Level of Development for each type, twenty identifying statements for each type (an assessment), imbalances of the centers, psychological categories (DSM), origins of type, dominant affect groups, each type's "missing piece", the Interconnected Enneagram, and recommendations.

Tieger, Paul D., and Barron-Tieger, Barbara
Nurture By Nature: How To Raise Happy, Healthy, Responsible Children Through the Insights of Personality Type
Little, Brown and Company, 1997

The authors present the Myers-Briggs system for recognizing and respecting temperament in our children. In their words, "Deep down, all of us just want to be understood and accepted for who we are. This understanding is the greatest gift we can give our children. It's the real essence of self-esteem."

Tieger, Paul D., and Barron-Tieger, Barbara
Do What You Are: Discover the Perfect Career for You Through the Secrets of Personality Type
Little, Brown and Company, 2001

The authors again use the Myers-Briggs Type Indicator to expand the conversation on "good fit" work solutions.

Wagele, Elizabeth, and Stabb, Ingrid
The Career Within You: How To Find the Perfect Job for Your Personality
HarperOne, 2009

The authors examine the inherent qualities and acquired traits of Enneagram personalities and match them to jobs, careers, and/or callings that would seem to be a good fit. The idea is that though the Enneagram identifies qualities that we pick up in defense of our emotional selves, the fact that we've used certain skills in doing so, over and over again, makes us very good at them. We might as well put them to work for us in other work-related ways.

Wyman, Pat
Three Keys To Self-Understanding: An Innovative and Effective Combination of the Myers-Briggs Type Indicator Assessment Tool, the Enneagram and Inner-Child Healing
Gainesville, Florida: Center for Application of Psychological Type, Inc., 2001

Wyman offers abbreviated explanations of both the MBTI and the Enneagram (one chapter each) and an interesting perspective on how both are integral in understanding self. Discounting any emphasis on wings, subtypes, or degree or level of mental health or spiritual state, Wyman presents her own theory on why individuals operating out of the same Enneagram number can appear to be so different: differing Core Selves as profiled by the MBTI assessment. She proposes that internal tension and conflict results from incompatible qualities of one's Myers-Briggs type and Enneagram type. As a psychotherapist working almost entirely with women, she believes the only way to resolve the tension and conflict is through Inner-Child Healing (which she discusses at greater length). Wyman presents many tragic case studies, but manages to remain witty as well as pointed in her overall writing style.