An Introduction to Non-Classical Logic: From If to Is, Edition 2

Being Logical: A Guide to Good Thinking

Doubt Truth to be a Liar

How to Solve It: A New Aspect of Mathematical Method

One: Being an Investigation into the Unity of Reality and of its Parts, including the Singular Object which is Nothingness

A Rulebook for Arguments: Edition 5

Mathematical Pluralism

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

The Fifth Corner of Four: An Essay on Buddhist Metaphysics and the Catuṣkoṭi

In Contradiction: Edition 2

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

Towards Non-Being: Edition 2

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

A Course in Miracles - Explanations of Major Themes

A Dictionary of Logic

Everything and Nothing

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

Fast Math: Learn the Secrets of Mental Math: By Using Vedic Math and Other Math Tricks to Perform Mental Calculations from Multiplication to Percentages without Calculators

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