Personality Type. It’s what gets me up in the morning and keeps me up at night.

Welcome! You might know me from one of several books I wrote about Personality Type with Barbara Barron, and most recently with Kelly Tieger.  

I didn’t invent Personality Type – that was Suisse psychologist Carl Jung. And, we have Isabel Myers and her mother Katherine Briggs to thank for introducing Jung’s life-changing insights to the world. 

What I’ve spent my last forty years doing is applying this very rich Jung/Myers model to help people live happier, healthier, and more fulfilling lives.   

This site will familiarize you with the books I’ve written, research I’ve conducted, online tools I’ve created, and to my surprise and delight – fascinating new insights that I have daily – even after all these years.