[en] The Fallacy Detective · Thirty-Eight Lessons on How to Recognize Bad Reasoning Christian Logic
[en] [Gutenberg 60893] • Thinking and learning to think Philadelphia : J.B. Lippincott company
[en] What You Really Need to Lead · The Power of Thinking and Acting Like an Owner Harvard Business Review Press
[en] [Gutenberg 40665] • Studies in Logical Theory Southern Illinois University Press
[en] [Gutenberg 40794] • Essays in Experimental Logic Dover Publications Inc.
[en] [Gutenberg 37423] • How We Think Createspace Independent Publishing Platform
[en] [Gutenberg 16269] • Thought-Forms Dodo Press
[en] [Gutenberg 7052] • Dr. Heidenhoff's Process Createspace Independent Publishing Platform
[en] [Gutenberg 61817] • Rollo Learning to Read Dodo Press
[en] Mental Traps · The Overthinker's Guide to a Happier Life Anchor Canada
[en] Power Thoughts · 12 Strategies to Win the Battle of the Mind FaithWords
[en] Battlefield of the Mind for Kids FaithWords
[en] Foucault's Pendulum Ballantine