“Until we insurgent architects know the courage of our minds and are prepared to take an equally speculative plunge into some unknown,” David Harvey writes in conclusion to his stunning new work, Spaces of Hope, “we too will continue to be the objects of historical geography (like worker bees) rather than active subjects, consciously pushing human possibilities to their limits” (255). Spaces of Hope serves as a fitting capstone to the Marxist geographer’s oeuvre of...