Helen Greathead Books

My chocolate bar and other foods

By Helen Greathead

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My chocolate bar and other foods

By Helen Greathead

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My t shirt and other clothes

By Helen Greathead

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This series investigates just how lots of familiar household items are put together. This is explored in an ethical and fair trade context, featuring information on both good and bad working enviro...

My Chocolate Bar and Other Food

By Franklin Watts Greathead Helen

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Well Made Fair Trade Chocolate Bar Food

By Helen Greathead

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My mobile and other smart accessories

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Wicked wildlife

By Helen Greathead

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Would you swim with alligators or piranha? Would you fight a bear or a giant squid? These diabolical situations and more will have you running for cover as you plunge into a series of fiendish ques...

Super sports

By Helen Greathead

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Would you rather be hit by a baseball or a tennis ball? Would you tackle a sumo wrestler or a rugby player? These diabolical situations and more will have you running for cover as you plunge into a...

Toys That Move Design and Make

By Helen Greathead

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Cards Design and Make

By Helen Greathead

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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.