Whenever we envision a world without war, prisons, or capitalism, we are producing speculative fiction. Organizers and activists envision, and try to create, such worlds all the time. Walidah Imarisha and adrienne maree brown have brought 20 of them together in the first anthology of short stories to explore the connections between radical speculative fiction and movements for social change. These visionary tales span genres--sci-fi, fantasy, horror, magical realism--but all are united by an attempt to inject a healthy dose of imagination and innovation into our political practice and to...