Logic: A Very Short Introduction: Edition 2

Dictionary of Logic as Applied in the Study of Language: Concepts/Methods/Theories

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

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

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

536 Puzzles and Curious Problems

Doubt Truth to be a Liar

How to Solve It: A New Aspect of Mathematical Method

In Contradiction: Edition 2

A Transition to Advanced Mathematics: A Survey Course

Towards Non-Being: Edition 2

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

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

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

The Canterbury Puzzles and Other Curious Problems

Mathematical Pluralism

Foundations and Fundamental Concepts of Mathematics

A Rulebook for Arguments: Edition 5

Everything and Nothing