5-The Prince By Niccolo Michiavelli :
A short treatise on how to acquire power, create a state, and keep it, The Prince represents Machiavelli’s effort to provide a guide for political action based on the lessons of history and his own experience as a foreign secretary in Florence. His belief that politics has its own rules so shocked his readers that the adjectival form of his surname, Machiavellian, came to be used as a synonym for political maneuvers marked by cunning, duplicity, or bad faith.
Machiavelli referred to his treatise as De Principatibus (“Of Principalities”) while writing it, and it circulated in manuscript form during the 1510s. When it was first published in 1532, five years after Machiavelli had died.