This is another hard science fiction story, a sequel to "Bats in the Belfry, By Design". It really isn't necessary, though, to read the first in order to make sense of the second; this would only help slightly. The "hard" (technically plausible) nature of "Freedom" persists for most of the book; only the ending becomes a bit of a stretch, as far as that goes. Subject matters include space flight, genetic engineering, machine intelligence, right-wing fundamentalist extremism, and race relations. This book is heavily libertarian oriented (its politics is that freedom is good, and freedom is maximized when government is minimized).