Gerrie McCall Books

Dragons

By Gerrie McCall

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Monsters and villains of the movies and literature

By Gerrie McCall

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Discover the stories behind the world's scariest characters from ancient myth, legend and literature--from the three-headed dog Cerberus to Dracula and the Headless Horseman. This collection of mor...

Surviving Extreme Weather

By Gerrie McCall

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Dinosaurs

By Gerrie McCall

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Fierce water creatures

By Gerrie McCall

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Weird & wonderful fish

By Gerrie McCall

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Ancient Legends

By Gerrie McCall, Lisa Regan

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Ancient Legends

By Gerrie McCall, Lisa Regan

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Classical Myths

By Gerrie McCall, Lisa Regan

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Classical Myths

By Gerrie McCall, Lisa Regan

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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.