Pixar, including film director and animator Pete Docter in preparation of his 2015 film Inside Out. He has worked and continues to work with Facebook engineers and designers on projects such as Facebook stickers and Facebook reactions. He has also worked on projects at Google on altruism and emotion, and was recently featured in Tom Shadyac’s movie I Am. Keltner is also collaborating with the Sierra Club to get veterans and inner city kids outdoors. Building upon his experiences in a restorative justice program with prisoners in San Quentin Prison, Keltner wrote a brief for a case – Ashker v. Governor of California – that led to the curtailment of solitary confinement in maximum-security prisons in California. Theory of power Together with Deborah H. Gruenfeld of the Stanford Graduate School of Business and Cameron Anderson, psychologist at the Haas School of Business at UC Berkeley, Keltner has developed the Approach/Inhibition Theory of Power, which aims to present an integrative account of the effects of power on human behavior, suggesting that the acquisition of power has a disinhibiting effect regarding the social consequences of exercising it. Science of happiness In his book Born to be Good: The Science of a Meaningful Life, Keltner explores the science behind well-being. The book attempts to counter the bias that we are wired to be self-interested. Keltner explores the Confucian idea of the jen ratio; the relationship between actions that bring the good of others to completion and those that bring out bad. The greater score is a direct relation to your happiness. In the book he touches on the qualities of gratitude, compassion, play, awe, embarrassment and teasing and how these qualities are innate in people but also can be developed. Personal life Keltner lives in Berkeley, California ,with his wife, Mollie McNeil, an alumna of UC Berkeley, and their two daughters Natalie and Serafina. Books Keltner, Dacher. The Power Paradox: How We Gain and Lose Influence. Penguin, 2016. ; Keltner, Dacher, Jason Marsh, and Jeremy Adam Smith, editors, The Compassionate Instinct: The Science of Human Goodness. New York: W. W. Norton & Co., 2010. Keltner, Dacher. Born to Be Good: The Science of a Meaningful Life. W. W. Norton, 2009. . Keltner, Dacher, Keith Oatley, and Jennifer M. Jenkins. Understanding Emotions 3rd ed. ; prev. ed. published by Blackwell Publishers, 1996. Gilovich, Thomas, Dacher Keltner, and Richard E. Nisbett. Social Psychology. New York: