Shawn Achor (2011). “The Happiness Advantage: The Seven Principles of Positive Psychology that Fuel Success and Performance at Work”, p.104, Random House
"Damon Lindelof on Struggling With Depression and Why Knowing J.J. Abrams is 'A Bit of a Curse'". Interview with Stephen Galloway, www.hollywoodreporter.com. November 8, 2015.