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CBS This Morning: Pollyanna Principle

CBS This Morning: The science of gift-giving

CBS This Morning: Willpower

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Today Show: Best-Case Scenario Handbook

John Tierney

John Tierney is a science writer. His book, Willpower: Rediscovering the Greatest Human Greatest Strength (Penguin Press, 2011), was a New York Times best-seller and has been translated into 20 languages. He is a contributing editor to City Journal and a contributing columnist to the science section of the New York Times. He is also a public speaker and frequent guest on “CBS This Morning,” Fox News’ “Red Eye,” and Fox Business’ “Kennedy.”