A warm and friendly book that has fun along the way and doesn't take its self too seriously. The Big Science bit ambles along with a nudge and a wink, the Fantasy side adds a respectful nod and gets on with what makes it sell millions. But bear in mind that this is not a DiscWorld book.
TSoD Pt 1 was a bit of a good natured panel debate between two opposing camps. Pt 2 is an out and out collusion but absolutely none the worse and all for the better for that.
Having read this in paperback I leapt at the chance of listening to it via my mp3 player. The book comes alive and I understood so much more of the science it contained. The alternate chapters are written by Terry Pratchett and put the context of the science from the other chapters into perspective on the discworld. I am now looking forward to the next installment of The Science of Discworld.