Oxford Studies in Medieval Philosophy, Volume 2

The Cambridge History of Medieval Philosophy: Edition 2

Being Logical: A Guide to Good Thinking

Oxford Studies in Medieval Philosophy, Volume 3

Oxford Studies in Medieval Philosophy, Volume 4

A Rulebook for Arguments: Edition 5

Oxford Studies in Medieval Philosophy Volume 6

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

Oxford Studies in Medieval Philosophy Volume 7

Oxford Studies in Medieval Philosophy Volume 8

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

Oxford Studies in Medieval Philosophy Volume 9

Oxford Studies in Medieval Philosophy Volume 10

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

Oxford Studies in Medieval Philosophy: Volume 11

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