The Logic of Scientific Discovery: Edition 2

Beyond Good and Evil

The Open Society and Its Enemies

Thus Spoke Zarathustra

All Life is Problem Solving

Think: A Compelling Introduction to Philosophy

The Two Fundamental Problems of the Theory of Knowledge

History of Western Philosophy

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

Philosophical Investigations: Edition 4

The Poverty of Historicism: Edition 2

At The Existentialist Café: Freedom, Being, and Apricot Cocktails

The Open Universe: An Argument for Indeterminism From the Postscript to The Logic of Scientific Discovery

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

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

The Art of Travel

Quantum Theory and the Schism in Physics: From the Postscript to The Logic of Scientific Discovery

The World of Parmenides: Essays on the Presocratic Enlightenment