Here are some book titles you may be interested in for further reading..
The Enneagram in Love and Work
by Helen Palmer. HarperSanFrancisco, San Francisco, 1995. An easy read, this book contains descriptions of the types as they show up in love and work. A valuable relationship book which contains an extensive directory of most reported interactions between the types in intimacy and business settings. Each type juxtaposes to the others.
Bringing Out the Best in Yourself at Work
by Ginger Lapid-Bogda. McGraw Hill 2004. An excellent book that will guide you though the nine personality types as they interact in the business world, how to communicate effectively with other profiles and how to deal with conflict are some of the topics covered.
The Complete Enneagram – 27 Paths to Greater Self-Knowledge
by Beatrice Chestnut. She Writes Press. An excellent expose with plenty of up to date material on the instinctual subtypes.
What Type of Leader Are You?
by Ginger Lapid-Bogda. McGraw-Hill 2009. Using the Enneagram system to identify and grow leadership strengths. Covers areas like thinking and acting strategically, driving for results, making optimal decisions, taking charge of change & stretching your leadership paradigms.
Character and Neurosis – An integrative View
by Claudio Naranjo M.D. Gateways / IDHHB, INC. Claudio Naranjo participated in the original training with Oscar Ichazo in Chile in 1970 and is considered one of the foremost and original teachers of the Enneagram. For those who have a good knowledge of the Enneagram & have a background in psychology or psychiatry.
The Essential Enneagram: The Definitive Personality Test and Self-Discovery Guide
by David Daniels & Virginia Price. HarperSanFrancisco, San Francisco, 2000 (originally published as The Stanford Enneagram Discover Inventory and Guide
Know Your Parenting Personality
by Janet Levine. John Wiley & Sons Inc. How to use the enneagram to become the best parent you can be.
An Insiders Guide to the Nine Personality Types – the Enneagram for success at work
by Michael Goldberg. HarperCollins 1997
The Enneagram Made Easy
by Renee Baron & Elizabeth Wagele. HarperSanFrancisco. An easy and humorous guide with cartoons, descriptions and exercises.