The Republic, by Plato
Laws, by Plato
Apology, by Plato
Crito, by Plato
Phaedo, by Plato
Politics, by Aristotle
The Athenian Constitution, by Aristotle
The Prince, by Niccolo Machiavelli
Leviathan, by Thomas Hobbes
The Citizen, by Thomas Hobbes
The Commonwealth of Oceana, by James Harrington
Political Treatise, by Benedict Spinoza
The Spirit of Laws, Charles de Montesquieu
The Social Contract, by Jean Jacques Rousseau
Discourse on the Origin of Inequality Among Men, by Jean Jacques Rousseau
A Discourse on Political Economy, by Jean Jacques Rousseau
The Law, by Frederick Bastiat
Second Treatise on Civil Government, by John Locke
A Letter Concerning Toleration, by John Locke
On Liberty, by John Stuart Mill
Representative Government, by John Stuart Mill
Democracy in America, by Alexis De Tocqueville
Civil Disobedience, by Henry David Thoreau
Reflections on the Revolution in France, by Edmund Burke
Common Sense, by Thomas Paine
The Age of Reason, by Thomas Paine
The Rights of Man, by Thomas Paine
The Communist Manifesto, by Karl Marx and Friedrich Engels