Interesting arguments, presented in a very clear and matter-of-fact way. Was not a fan of the prose however. Very dry, chapters did not really seem to flow together. Given such a gripping topic, would have expected a bit more page "turn-ability".
You will never look at the world around you in the same way after reading this book. It gives some interesting answers as to how different cultures where shaped depending upon where they were located and and the food that was available.