Catherine Clark Books

Middle Sister 7th Heaven TM

By Catherine Clark

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Truth or dairy

By Catherine Clark

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This is the journal of Courtney Von Dragen Smith: middle child, product of divorce, would-be vegetarian. She writes the first mega-negative page the day after her boyfriend, "such a Dave," breaks u...

The landscape of industry

By Judith Alfrey

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Theorising special education

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Theorising Special Education

By Catherine Clark, Alan Millward, Alan Dyson

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How not to run for president

By Catherine Clark

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When Aidan, an ordinary Ohio twelve-year-old, saves a presidential candidate from injury during a campaign appearance and his heroic deed is broadcast everywhere, he and his family discover the sea...

How to Meet Boys

By Catherine Clark

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The day I met him

By Catherine Clark

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Lost in space

By Catherine Clark

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Ten-year-old Will Robinson and his family leave Earth to be colonists on the planet Alpha Prime, only to become lost in space.

Worst Case Scenario

By Catherine Clark

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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.