A very well written and interesting book down the same avenue as Guns, Germs and Steel. If you haven't read Guns Germs and Steel I would read that first.
Some fascinating stuff here well worth the read. There are some interesting conclusions you can draw if agree with Richard Dawkins work: The Selfish Gene.
This is Richard Dawkins 1976 masterwork on evolutionary biology from the perspective of gene selection. The updated edition is as poignant today as when it was penned. Updates include fascinating studies supporting many of the hypotheses forwarded in the original text.
Dawkins is an excellent writer and uses non-scientific vocabulary and analogies to explain complex biological models in an easy to understand and informative way.
Other areas touched on include game theory models (the prisoners dilemma) as a basis for understanding an ESS (Evolutionarily Stable Strategy), memes (a term he coined) and computer virus.