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...

How I Built Rusty

By Mark Shulman, Phillip Fickling

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Batman Begins Sticker Storybook

By Victoria Forlini

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Batman Begins Giant Color Activity Book

By Victoria Forlini

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Wicked Weather Discovery Channel

By Kristin Bienert

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That s disgusting

By Mark Shulman

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The contents of this book may make you sick. Or they'll fascinate you. If you don't throw up, you'll learn about the horrible, brain-numbing ways nature can freak you out. What happens when you're...

Animal Snuggles

By Lynn Otterman

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Colorful illusions

By Mark Shulman, Aki Nurosi

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Illustrates different types of optical illusions and explains the reason for the illusion in each picture.

The Voodoo Revenge Book

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Jungle Snuggles

By Shaheen Bilgrami

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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.