Christine Zuchora Walske Books

"What if someone told you that your liver pumped blood through your body? You'd think that person was crazy! Discover how thought about the human body has changed over the centuries."--

Killer whales

By Christine Zuchora Walske

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With bodies designed to help them hide in the water, killer whales search the ocean for their next meal. Learn what makes killer whales such deadly predators, from their hunting styles to what they...

Energy in the real world

By Christine Zuchora Walske

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What is energy? Where does it come from?

Your head shape reveals your personality!

By Christine Zuchora Walske

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"What if someone told you that your liver pumped blood through your body? You'd think that person was crazy! Discover how thought about the human body has changed over the centuries."--

The Dust Bowl

By Christine Zuchora Walske

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The Dust Bowl

By Christine Zuchora Walske

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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.