John Huehnergarth Books

Make a splash

By Penny Raife Durant

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Demonstrates the physical properties of water and other liquids through simple experiments.

No Good Mothers-In-Law

By John Huehnergarth, Steve Kirschner

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Small inventions that make a big difference

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Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato...

Small inventions that make a big difference

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Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato...

It's all in the family

By Norma Vasey Webb

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Free the Male Man

By John Huehnergarth, Shepherd Mead

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How to Live with a Neurotic Husband

By Stephen Baker, John Huehnergarth

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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.