Contents Introduction: Why Idealism Matters Part 1: Ancient Idealism 1. Parmenides and the Birth of Ancient Idealism 2. Plato and Neoplatonism Part 2: Early Modern Idealism 3. Phenomenalism and Idealism I: Descartes and Malebranche 4. Phenomenalism and Idealism II: Leibniz and Berkeley Part 3: German Idealism 5. Immanuel Kant: Cognition, Freedom and Teleology 6. Fichte and the System of Freedom 7. Philosophy of Nature and the Birth of Absolute Idealism: Schelling 8. Hegel and Hegelianism: Mind, Nature and Logic Part 4: British Idealism 9. British Absolute Idealism: From Green to Bradley 10. Personal Idealism: From Ward to McTaggart 11. Naturalist Idealism: Bernard Bosanquet 12. Criticisms and Persistent Misconceptions of Idealism 13. Actual Occasions and Eternal Objects: The Process Metaphysics of Alfred North Whitehead. Part 5: Contemporary Idealisms 14. Autopoiesis: Idealist Biology I 15. Autonomous Agents: Idealist Biology II 16. Contemporary Philosophical Idealisms