Poundstone 
Gaming the Vote 

Presidential and geographical elections in the US are often manipulated by an invisible hand, which makes the vote go astray. This relates to a "spoiler effect" generated through the engagement of a third party contrived by either of the two parties involved in an election campaign, thus to siphon off votes. From this point of view, the author analyzes drawbacks of current majority voting system of America, and discusses in details various voting methods ever used in history, proposed by scholars in the part hundreds of years and even those prevailing on internet in recent years, including Condorcet voting, Borda count, approval voting, single transferable vote, instant-runoff voting, range voting, etc. Which vote system is most likely to guarantee a fair election and thus increase people’s confidence in democratic elections? This book gives a tendentious answer at the end: range voting performs best in preventing manipulation and it’s time for range voting to come into effect and receive a test.