Philosophical Investigations: Edition 4

Being Logical: A Guide to Good Thinking

The Big Typescript: TS 213

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

Lecture on Ethics

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

Movements of Thought: Ludwig Wittgenstein's Diary, 1930–1932 and 1936–1937

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

The Mythology in Our Language: Remarks on Frazer's Golden Bough

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

A Course in Miracles - Explanations of Major Themes

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

The Critical Thinking Toolkit

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

Logic for Philosophy

The Thinker's Guide to Socratic Questioning

A Rulebook for Arguments: Edition 5

Logic: A Very Short Introduction: Edition 2

Modern Philosophy: An Introduction and Survey