Delivering Happiness -

is a #1 New York Times and Wall Street Journal bestseller written by Tony Hsieh , the late CEO of Zappos . Key Concepts & Themes

: It applies research on positive psychology to business, identifying four key factors that impact happiness: perceived control, perceived progress, connectedness, and vision/meaning. Delivering Happiness

: Hsieh argues that culture should be a company's #1 priority, believing that happy employees naturally provide better customer service. is a #1 New York Times and Wall