An attempt at something a bit different by Pratchett.
Nation puts Issues more front and centre than most of his Discworld books (although they've never been far from sight even in those others, and particularly in the last two-thirds or so of that, continuing series), and contains fewer laughs, though the voice is still recognisably his and it's an easy read for all that. Nothing special by Pratchett's standards, though, for all that its heart is clearly in the right place.