Mark Shulman Books

Treasure Hunters

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"Following clues left by their missing father, twelve-year-old twins Bickford and Rebecca Kidd sail from the Caribbean to New York City with their siblings to finish the dangerous quest of their wo...

Treasure Hunters

By Juliana Neufeld, James Patterson, Mark Shulman, Chris Grabenstein

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How I Built Rusty

By Mark Shulman, Phillip Fickling

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The Explorer s Gazette

By Melissa Heckscher, Mark Shulman, Melissa Heckschler

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Bagel Books Colors

By Mark Shulman

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Bagel Books Counting

By Mark Shulman

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Bagel Books Shapes

By Mark Shulman

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Bagel Books Opposites

By Mark Shulman

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The Wicked Wit of Benjamin Franklin

By Mark Shulman

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Colorful Illusions

By Mark Shulman, Aki Nurosi

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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.