Critical Thinking: Skills to Contemplate Life, Nature, the Human Race, and More

Thus Spoke Zarathustra

Human, All Too Human: A Book for Free Spirits

Philosophy: Skeptical and Existential Thinkers from the Past

The History of Philosophy: Thoughts from Existentialism, Stoicism, and Skepticism

The Republic: Plato

Existentialism: Figuring out the Meaning of Life and Ethics with the Great Philosophers

Being and Nothingness

On the Genealogy of Morality

Philosophers: The Greatest Philosophers and Thinkers of the World

The Virtue of Selfishness: A New Concept of Egoism

Skepticism: The Stoic, the Skeptic, and the Existentialist Thinkers of the World

Until the End of Time: Mind, Matter, and Our Search for Meaning in an Evolving Universe

Stoicism: Learning about Stoicism, Skepticism, and Existentialism

Right and Wrong

Existentialist Thinking: Skepticism and Existentialism Explained in Detail

An Essay Concerning Human Understanding

Summary of Sarah Bakewell's At the Existentialist Café

Language, Truth and Logic

The Book of Eels: Our Enduring Fascination with the Most Mysterious Creature in the Natural World