The Prince

"The Prince" — the most famous work of the Florentine statesman of the Renaissance era Niccolò Machiavelli (1469–1527), which brought him worldwide fame.
The book is essentially a universal guide to the science of governing any form of state. In his fundamental work, Machiavelli describes and compares examples drawn from ancient history with his own observations of his era, and on this basis, he derives certain rules and laws of political life, providing practical advice to rulers (princes, kings).
The main principles of political philosophy formulated by Machiavelli over 500 years ago remain relevant today and will retain their importance for many, many years to come.