“All flourishing is mutual,” according to this rousing treatise on the benefits of communal values. Potawatomi environmentalist Kimmerer (Braiding Sweetgrass) explains that the Potawatomi root word for “berry” (min) is also the root word for “gift,” illustrating how in the tribe’s “culture of gratitude,” natural resources are seen as offerings that carry with them “responsibilities of sharing, respect, [and] reciprocity.” Such principles are needed to counter the concentration of resources in the hands of the few, she contends, calling for “gift economies” in which “the practice for dealing with abundance is to give it away.” By way of example, she discusses how Native peoples of the Pacific Northwest mark life milestones with celebratory potlatches at which individuals “enhance their prestige and affirm connections with a web of relations” by giving away possessions. Kimmerer is clear-eyed about the challenges of transitioning to a gift economy, acknowledging that it’s susceptible to bad actors and will require a drastic change in mindset. However, she observes that modern examples of successful gift economies abound, from public libraries to open-source software and Wikipedia. Kimmerer doesn’t attempt to outline a practical plan for vanquishing self-centeredness borne of capitalism, but she nonetheless succeeds in bringing attention to the fact that alternatives are possible. It’s an eloquent call to action. Illus. Agent: Sarah Levitt, Aevitas Creative Management. (Nov.)