Dr. Barbara Fredrickson is a Kenan Distinguished Professor of Psychology at the Positive Emotions and Psychophysiology Laboratory at the University of North Carolina. She has studied the effects of positive emotions for over twenty years, and what she discovered and teaches has made her a luminary in the world of psychology. Yet, Dr. Fredrickson wants the news about positivity to spread beyond the scientific community, so she wrote Positivity to share her insights and lab-tested advice with the widest possible audience.