Claudia Boldt Books

Think and Make Like an Artist Art Activities for Creative kids

By Eleanor Meredith, Claudia Boldt

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Max s Mix and Match

By Claudia Boldt

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Odd dog

By Claudia Boldt

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Helmut is an odd dog. He doesn't like bones, he likes apples. In fact, he loves apples, and he can't bear the thought that his next-door neighbour Igor might be stealing them from his tree. Helmut...

Youre A Rude Pig Bertie

By Claudia Boldt

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Animals at Home

By Claudia Boldt

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Les Grandes Questions d Archilapin

By Astrid Desbordes, Claudia Boldt

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Ferdinand Fuchs frisst keine Huhner

By Claudia Boldt

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Waar woon ik Sorteerlotto 27 dieren en hun huisjes

By Claudia Boldt

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You re a Rude Pig Bertie

By Claudia Boldt

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Lots of Frogs

By Claudia Boldt, Howard Calvert

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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.