NOW PUBLISHED IN THIS SERIES:

Thomas Aquinas in 90 Minutes
Aristotle in 90 Minutes
St. Augustine in 90 Minutes
Berkeley in 90 Minutes
Confucius in 90 Minutes
Derrida in 90 Minutes
Descartes in 90 Minutes
Dewey in 90 Minutes
Foucault in 90 Minutes
Hegel in 90 Minutes
Heidegger in 90 Minutes
Hume in 90 Minutes
Kant in 90 Minutes
Kierkegaard in 90 Minutes
Leibniz in 90 Minutes
Locke in 90 Minutes
Machiavelli in 90 Minutes
Marx in 90 Minutes
J. S. Mill in 90 Minutes
Nietzsche in 90 Minutes
Plato in 90 Minutes
Rousseau in 90 Minutes
Bertrand Russell in 90 Minutes
Sartre in 90 Minutes
Schopenhauer in 90 Minutes
Socrates in 90 Minutes
Spinoza in 90 Minutes
Wittgenstein in 90 Minutes