The Open Society and Its Enemies

Beyond Good and Evil

The Logic of Scientific Discovery: Edition 2

Thus Spoke Zarathustra

All Life is Problem Solving

Think: A Compelling Introduction to Philosophy

The Two Fundamental Problems of the Theory of Knowledge

The Faith: What Christians Believe, Why They Believe It, and Why It Matters

In Search of a Better World: Lectures and Essays from Thirty Years

Philosophical Investigations: Edition 4

Either/Or: A Fragment of Life

The Lesson of this Century: With Two Talks on Freedom and the Democratic State, Edition 2

Unended Quest: An Intellectual Autobiography, Edition 2

How to Live a Good Life: A Guide to Choosing Your Personal Philosophy

Knowledge and the Body-Mind Problem: In Defence of Interaction

The World of Parmenides: Essays on the Presocratic Enlightenment

The Art of Travel

Realism and the Aim of Science: From the Postscript to The Logic of Scientific Discovery