Sharon Callen Books

Maddy s mad hair day

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"Young Maddy has wild and crazy red hair. She won't give up as she tries again and again to figure out what do to with her wild mane! Young readers will enjoy the funny illustrations as Maddy learn...

Max

By Sharon Callen

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Grandpa and Me

By Sharon Callen

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Boris the Bassett

By Sharon Callen

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Splash Down

By Sharon Callen

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How to Be a Kitten

By Sharon Callen

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Happy Faces Leave Home

By Sharon Callen

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Soo Yun s Book

By Sharon Callen

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Lovely One

By Sharon Callen

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Diversion en el Estanque de Los Patos

By Sharon Callen

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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.