Philosophy: Stoicism, Critical Thinking, and Skepticism Clarified

A Rulebook for Arguments

Logically Fallacious: The Ultimate Collection of Over 300 Logical Fallacies (Academic Edition)

Skeptical Thinking: Understanding Stoicism, Existentialism, and Other Philosophies in Life

Logic: A Very Short Introduction, 2nd Edition

Aristotle's Children: How Christian, Muslims and Jews Rediscovered Ancient Wisdom and Illuminated the Dark Ages

The Logic of Scientific Discovery

The Categories – Audiobook: The Categories: Aristotle's Foundation of Philosophical Thought

A Theologico-Political Treatise/A Political Treatise

Language, Truth and Logic

The Critique of Pure Reason, Volume 2

Tractatus Logico-philosophicus (Unabridged)

Reason and Rationality

Discourses and Selected Writings

Top Inspiring Thoughts of Earl Nightingale – Audiobook: Top Inspiring Thoughts of Earl Nightingale: Wisdom from a Motivational Speaker

The MEDITATIONS of Marcus Aurelius

How We Think – Audiobook: How We Think: John Dewey's Exploration of Thought Processes

Humbug!: The Skeptic's Field Guide to Spotting Fallacies and Deceptive Arguments (Second Edition)

The Republic: Plato