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The Fallacy Detective

Thirty-Eight Lessons on How to Recognize Bad Reasoning

16 minNathaniel Bluedorn, Hans Bluedorn

What's it about

Ever feel like you’re being tricked or misled in an argument, but you can’t quite put your finger on why? Learn to spot faulty logic and become a master of clear thinking. This guide makes identifying bad reasoning simple, fun, and empowering for everyone. You'll uncover the 38 most common fallacies, from red herrings and straw men to ad hominem attacks. By exploring real-world examples from politics, media, and everyday conversations, you'll gain the confidence to challenge weak arguments, strengthen your own, and never be fooled by bad reasoning again.

Meet the author

Nathaniel and Hans Bluedorn are pioneers in teaching logic and critical thinking to young people, with their classic work, The Fallacy Detective, selling over 500,000 copies. As homeschooled brothers, they discovered a passion for making complex logical concepts accessible and engaging for everyone. Their unique approach grew from a desire to equip students and families with the practical skills needed to analyze arguments and navigate a world of ideas, making them trusted guides in the art of clear reasoning.

The Fallacy Detective book cover