The world’s first management guru, Nicollo Machiavelli was born on May 3rd 1496 near Florence, Italy. He was politician, philosopher, poet and musician. He’s most famous for his book The Prince, whose central argument is commonly believed to be ‘the ends justify the means’.
A really entertaining book on Machiavellianism (which means to achieve one’s goal through unscruplous, deceitful and dishonest tactics) is What Would Machiavelli Do? The Ends Justify the Meanness.
Don’t expect any nuggets of wisdom though. Its a satire and the only thing you’ll learn is how to become the meanest son of a bitch your office! But its very funny if you appreciate that sort of humor.