Vintage paperback study guide: Philosophy by Nicholas A. Horvath. Published as part of Barron’s Essentials / The Efficient Study Guides series. • ISBN: 0812004981 • Original Price: $2.95 • Covers major philosophers: Plato, Aristotle, Plotinus, Augustine, Aquinas, Hobbes, Descartes, Locke, Berkeley, Hume, Kant, Hegel, Nietzsche, Kierkegaard. • Great for collectors of vintage philosophy, retro study guides, or Barron’s Educational Series books. Condition: Light cover wear and age toning. Binding intact, pages clean.