Logica Universalis: Towards a General Theory of Logic, Edition 2

How to Solve It: A New Aspect of Mathematical Method

Being Logical: A Guide to Good Thinking

Theory of Graded Consequence: A General Framework for Logics of Uncertainty

A Rulebook for Arguments: Edition 5

The Exoteric Square of Opposition: The Sixth World Congress on the Square of Opposition

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

Rough Sets, Fuzzy Sets, Data Mining and Granular Computing: 12th International Conference, RSFDGrC 2009, Delhi, India, December 16-18, 2009, Proceedings

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

Transactions on Rough Sets X

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

Transactions on Rough Sets XIV

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

A Course in Miracles - Explanations of Major Themes

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

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

The Critical Thinking Toolkit