Barbara L. Fredrickson

Positivity: Groundbreaking Research Reveals How to Embrace the Hidden Strength of Positive Emotions, Overcome Negativity, and Thrive (2009)

It's very strange that people act so antagonistic towards this book. It's written by an expert in psychology and everything in it is validated by empirical study. Yes, it's packaged as a 'self help' sort of book, but there are zero of those all-too-common, nonsensical 'folk remedies' for your psy...