Gratitude is powerful: not only does it feel good, it’s also been proven to increase our well-being in myriad ways. The result of a multiyear collaboration between the Greater Good Science Center and Robert Emmons of the University of California, Davis, explores gratitude’s deep roots in human psychology—how it evolved and how it affects our brain—as well as the transformative impact it has on creating a meaningful life a better world. With essays based on new findings from this original research and written by renowned positive psychologists and public figures, this important book delves deeply into the neuroscience and psychology of gratitude, and explores how thankfulness can be developed and applied, both personally and in communities large and small, for the benefit of all. With contributions from luminaries such as Sonja Lyubomirsky, W. Kamau Bell, Arianna Huffington, and many more, this edited volume offers more than just platitudes—it offers a blueprint for a new and better world.