Critique of Practical Reason

Twilight of the Idols, On Truth and Lies in a Nonmoral Sense: How to Philosophise with a Hammer

Critique of Judgement

Kant's Foundations of Ethics

The Critique of Pure Reason, Volume 2

The World as Will and Idea: Volume 2

The Critique of Practical Reason

Prolegomena to Any Future Metaphysics (Unabridged): optional

Dreams of a Spirit-Seer

Groundwork of the Metaphysics of Morals

Perpetual Peace: A Philosophical Essay: Demanding Audio Book

Zero: The Biography of a Dangerous Idea

Fundamental Principles of the Metaphysics of Morals

The Story Of Aristotle's Philosophy (Unabridged)

Grounding for the Metaphysics of Morals

Summary of Will Durant & Ariel Durant's The Lessons of History

The Critique of Pure Reason – Audiobook: The Critique of Pure Reason: Critique of the Faculty of Reason in General - Immanuel Kant's Philosophical Masterpiece: Delving into the Critique of Pure Reason

Philosophical Investigations

Fundamental Principles of The Metaphysic of Morals: Demanding Audio Book

Kant: A Very Short Introduction