Seriously, go out and buy it now if you're at all interested in enneagram. Superior to any and all interpretations of enneagram type and characteristics, and reads like a diagnostic manual:
http://ecx.images-amazon.com/images/...500_AA240_.jpg
http://www.amazon.com/Character-Neur...9846983&sr=1-3
Of course, it's apparently also now out of print and you'll have to hunt for it.
:D

