I wanted to weigh in on this subject and finally found the book I was looking for called The New Personality Self-Portrait: Why You Think, Work, Love and Act the Way You Do. by John M. Oldham, md and Lois B. Morris (http://www.musc.edu/psychiatry/faculty/oldhamj.htm)

"Psychiatry concerns itself with disorder. Our primary concern in this book is to delineate the normal, adaptive personality styles that the disorders take to an extreme."

Here's an example:
Self-Confident Style corresponds with Narcissistic Disorder
Serious Style corresponds with Depressive Disorder

There are 18 styles and disorders described. It's kind of cool to look at the positive side of personality for a change. If you want me to look up anything, let me know.