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The Thinking Toolbox

Thirty-Five Lessons That Will Build Your Reasoning Skills

by Nathaniel Bluedorn and Hans Bluedorn

This book is like a toolbox, full of different kinds of tools you can use for different thinking tasks. Just as you use the wrench in a regular tool box to fix the sink, so you can use the tools we give you in this book to solve thinking problems.

We wrote this book for children and adults who want to learn logic and critical thinking skills. The Thinking Toolbox follows the same style as The Fallacy Detective with lessons and exercises and an answer key in the back. Parents and teachers, as well as anybody who wants to learn logic, will find The Thinking Toolbox easy to use and practical.


  1. Introduction
    • How to Use This Book
  2. Tools for Thinking
    • A Thinking Tool
    • A Discussion, a Disagreement, an Argument, and a Fight
    • When It Is Dumb to Argue
    • Fact, Inference, or Opinion
    • Finding the Premises and Conclusion
    • How to List Reasons Why You Believe Something
    • How to Defeat Your Own Argument
    • When Not to Use Logic
  3. Tools for Opposing Viewpoints
    • Using the Opposing Viewpoints Chart
    • Opposing Viewpoints Are Everywhere
    • The Good, the Bad, and the Ugly Evidence
    • You Can’t Believe Everything You Hear
    • Are You Primary or Secondary?
    • Who Has a Reason to Lie?
    • Corroborating Evidence
    • Mystery of the Stolen Manoot
    • Stir Plot until Thickened
    • Gunfight at the O.K. Corral
    • Does a Possibly Make a Probably?
    • Circumstantial Evidence
    • Puzzling Developments
  4. Tools for Science
    • Mole the Scientist
    • Tools that Help Scientists Do Their Job
    • How to Be a Keen Observer
    • Brainstorming
    • Hypothesis Is a Huge Word
    • How to Prove You Are Wrong
    • A Good Experiment
    • How to Analyze Data
    • Listen and Learn
    • Pseudoscience
    • A Little Project
  5. Projects
    • Projects
    • “Herbal the Verbal Gerbil” Game
    • The Mystery of the Large Letter Library
  6. Answer Key

We recieve orders by email (

First-time orders must be pre-paid by credit card, check, or PayPal. We expect all orders to be paid in thirty days. All payments must be in U.S. funds drawn on a U.S. bank. We do not accept returns.

We will ship our products to you by UPS Ground and charge you the actual shipping costs for each order. Please provide us with your UPS billing code. We will replace all products which arrive to you in damaged condition. We do not accept returns on items sold wholesale.

Product Media Retial Price
The Fallacy Detective quality paperback $22.00
The Thinking Toolbox quality paperback $22.00
Hand that Rocks the Cradle quality paperback $15.00
Logic in 100 Minutes digipac DVD $15.00
Order Items of Same Title Discount off Retail Price
1-3 none
4-99 40%
100-499 45%
500 or more 50%

Let us know ( if you would like us to include you on the list of places where customers can buy our products.

We now offer a 35% discount to schools and homeschool co-ops for orders of our books in quantities of four or more per title. You must order at least 4 copies of any one title.

All orders must be prepaid unless it is an established account. You can pay by credit card, PayPal or check.

We recieve orders by email (

(1) Tell us the titles and quantity of books you want to order. (2) Give us your name, phone number, and the address to which you would like the books shipped. (3) We will email an invoice to you. (4) You can pay directly from the email invoice. (5) Once we recieve payment, we will ship your books to you by UPS Ground and charge you the actual shipping costs for each order. (6) We do not accept returns on items sold wholesale.

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