Historical and Philosophical Dimensions of Logic, Methodology and Philosophy of Science: Part Four of the Proceedings of the Fifth International Congress of Logic, Methodology and Philosophy of Science, London, Ontario, Canada-1975

A Rulebook for Arguments: Edition 5

Logic, Foundations of Mathematics, and Computability Theory: Part One of the Proceedings of the Fifth International Congress of Logic, Methodology and Philosophy of Science, London, Ontario, Canada-1975

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

Basic Problems in Methodology and Linguistics: Part Three of the Proceedings of the Fifth International Congress of Logic, Methodology and Philosophy of Science, London, Ontario, Canada-1975

The Philosopher's Book of Questions & Answers: Questions to Open Your Mind

How to Win Every Argument: The Use and Abuse of Logic, Edition 2

An Illustrated Book of Bad Arguments: Learn the Lost Art of Making Sense

A Course in Miracles - Explanations of Major Themes

Rudolf Carnap, Logical Empiricist: Materials and Perspectives

A Reasonable Response: Answers to Tough Questions on God, Christianity, and the Bible

Kant’s Philosophy of Physical Science: Metaphysische Anfangsgründe der Naturwissenschaft 1786–1986

There Are Two Errors in the the Title of This Book, Revised and Expanded (Again): A Sourcebook of Philosophical Puzzles, Problems, and Paradoxes, Edition 3

Wittgenstein in Florida: Proceedings of the Colloquium on the Philosophy of Ludwig Wittgenstein, Florida State University, 7–8 August 1989

The Critical Thinking Toolkit

Frege Synthesized: Essays on the Philosophical and Foundational Work of Gottlob Frege