Book list for the Introduction to Political Philosophy: 

Aristotle, Ethics, Hackett Edition.

Cicero, Selected Works, Penguin.

Yves Simon, A General Theory of Authority, University of Notre Dame Press.

James V. Schall, The Politics of Heaven & Hell, University Press of America. First Four Chapters.

Herbert Deane, The Political and Social Ideas of St. Augustine, Columbia University Press

Thomas Aquinas, Treatise on Law, any edition. I used Regnery Gateway.

Machiavelli, The Prince, any edition.

Allan Bloom, Shakespeare’s Politics, University of Chicago Press.

John Locke, Second Treatise on Government, any edition.

J.J. Rousseau, Social Contract, any edition.

James V. Schall, At the Limits of Political Philosophy, The Catholic University of America Press.

E.F. Schumacher, A Guide for the Perplexed, Harper Colophon.

F. Nietzsche, Beyond Good and Evil, Penguin.

Plato, The Apology, the Crito, the Phaedo, and the Republic, any edition. Penguin has the first three, the longer edition of Bloom on the Republic is good, but there are other good editions. Both the Basic Works of Aristotle (Modern Library) and the Basic Works of Plato (Hackett) are worth having.

Also James V. Schall, Another Sort of Learning, Ignatius Press should be read.

All of these books are in paperbound.