I was loaned this to read after confessing to a love of scifi and Terry Pratchett. I have to say this isn't like most of his books that I've read. I had a hard time understanding it. It hovered somewhere between the sardonic humour of Douglas Adams and the hard, dry science-fiction of Asimov. I still don't really know what the story was about or what it meant. It was interesting in terms of never having read scifi by Pratchett before, but I'm not sure I'd read it again. I may have to just to see if it makes more sense a second time.