Professional musician turned intrepid economist Arthur Brooks travels around the globe in search of an answer to the question: How can we lift up the world, starting with those at the margins of society? His journey takes him through the chaotic streets of Mumbai, a town in Kentucky left behind by the global economy, a homeless shelter in New York, a street protest in Barcelona, and a Himalayan Buddhist monastery. Along the way, he discovers the secrets not only to material progress for the least fortunate, but also true and lasting happiness for all.