This is a good introduction to logic, inductive and, to a lesser extent, deductive. It probably serves better as a textbook than as an aid to individual learning, but under the proper conditions and with the proper reader, it could serve both. I liked it best when it was explaining the truth tables and the rules of the calculus of probability. Particularly interesting are the practical applications in the exercises, especially in cards and dice and, to a lesser extent, horse racing. The concepts of utility and belief need amplification because they come off too briefly in relation to their importance. No one who has mastered this book would ever have trouble calculating the exact value of a bet - a benefit of some importance to us gamblers. I have never seen or heard of the theory of marginal value applied to money. It certainly applies to other things, like water. Too little water makes water very valuable, enough is enough, and too much gives water a negative value (as in our current flooding in Texas). Skyrms is right about some aspects of money: Too little and it hurts. Don't believe me? Try walking around New York City on the weekend with only a dime in your pocket. A poor man would be a fool to risk $1000 on an even money bet. Because if he lost, it would hurt a lot. A rich man could lose that bet and not suffer at all. And of course, enough money is good. Therefore, money does have a relative value. Whether it has a marginal value (too much is bad) is debatable. Some things that might be corrected in the next addition: The answers to the exercises should have pages numbers for more easy reference. The cover is wrong in saying there are answers for every other problem. That is only partially true and in fact some exercises have no answers eg VIII 3 has no answers to any exercise. And Symes is wrong in assuming that evaluating all the evidence doesn't cost anything (page 154). It costs time and trouble. Whether it is worth it would depend on the situation.

I originally picked up this book due to a glowing print review given to it by Freeman Dyson and I wasn't at all disapointed. I found it to be a really remarkably in-depth treatment of the subject matter considering the relatively meager length and yet it was simple, direct and unpretentious. ( I would preface this book, however, with a more inclusive work on Game theory if you're interested. It's not necessary to understand the thesis or learn from the experiments but there are many principal concepts in Game theory that he never defines completely- such as Nash Equilibrium. I suggest William Poundstone's "The Prisoner's Dilemma")

I think the final chapter is one of the most compelling explanations available in print of how differential reproduction can and does most frequently create environments where individuals of a species engage in activities that benefit the group at their own personal expense. He leads directly to the point of any given chapter without beating you over the head with it and by the time you get there, you realize that it was without resorting to extensive technical language or drawing on a huge number of oblique studies. It probably doesn't need to be said that this book doesn't provide much to the "rational choice social contract" thinkers and I think the title is more than enough to steer them away, anyway.

In summary, I think this book would be of tremendous interest to anyone interested in Game theory, Theoretical mathematics, sociology, political science, microeconomics or any of a number of different fields specifically because of the author's aversion to distilling the ideas presented in the book into a misleading one sentence conclusion. If you're looking for a brief yet salient discussion of the subject matter, this is both.