For readers of Jill Lepore, Joseph J. Ellis, and Tony Horwitz comes a lively, thought-provoking intellectual history of the golden age of American utopianism--and the bold, revolutionary, and eccentric visions for the future put forward by five of history's most influential utopian movements. In the wake of the Enlightenment and the onset of industrialism, a generation of dreamers took it upon themselves to confront the messiness and injustice of...