This certificate verifies that Ellen Hol successfully completed and received a passing grade in GG101x: The Science of Happiness, an online course offered by BerkeleyX, an initiative of the University of California, Berkeley through edX. The course was directed by Dacher Keltner, Professor and Founding Director of the Greater Good Science Center at UC Berkeley, and Emiliana Simon-Thomas, Science Director of the Greater Good Science Center at UC Berkeley.