Hy Ruchlis Books

Clear Thinking
Clear Thinking

By Hy Ruchlis

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Story of Mathematics
Mr. Wizard s 400 Experiments in Science
Math Projects
Math Projects

By Hy Ruchlis, Harry Milgrom

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Math Projects
Phonic Word Builder
Phonic Word Builder

By Hy Ruchlis

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Mr Wizard s 400 Experiments in Science
Clear thinking
Clear thinking

By Hyman Ruchlis

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Discusses reasoning and clear thinking, including such aspects as the nature of facts, language and reasoning, false analogies, and prejudice.

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Reality Centered Learning
How Do You Know It's True?
How Do You Know It's True?

By Hy Ruchlis, Hyman Ruchlis

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Discusses the difference between science and superstition, the basic nature of science as a way of thinking, and the ways in which amazing events can be explained rationally.

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Related Articles from our Blog

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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