I just uploaded a book to this site that I’ve been writing over the past few years. It’s called Personality and the Brain. The book presents an hypothesis linking the Enneagram theory of personality to the brain. This hypothesis relies on recent neuroscientific research concerning prefrontal cortex (PFC) and amygdala asymmetry. I’ve set up the chapters as separate PDFs that you can download. Please use this posting to offer comments on the book generally. I’ll create separate postings for the individual chapters.