The Enneagram in Love & Work: Understanding Your Intimate & Business Relationships
New York: HarperOne, 1995
Palmer gives another fairly comprehensive overview with a focus on how types come together in love and work.
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 Myers-Briggs Type Indicator is used 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
The authors suggest that the inherent qualities and acquired traits of the Enneagram personalities can be used to determine "good fit" work solutions.