Stephen Marchesi Books

Where Is Jerusalem?

By Who HQ, Stephen Marchesi, Ellen Morgan

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Learn all about Jerusalem--a sacred city in the Middle East that has existed for over five thousand years.From the #1 New York Times Best-Selling Who Was? series comes Where Is?, a series that tell...

Where Is Jerusalem?

By Who HQ, Stephen Marchesi, Ellen Morgan

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Who Was John Lewis?

By Crystal Hubbard, Who HQ, Stephen Marchesi

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Learn about the incredible legacy of civil rights legend and Georgia congressman John Lewis in this inspiring addition to the #1 New York Times Best-Selling series.Starting in the 1960s, John...

Who Was John Lewis?

By Crystal Hubbard, Who HQ, Stephen Marchesi

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Learn about the incredible legacy of civil rights legend and Georgia congressman John Lewis in this inspiring addition to the #1 New York Times Best-Selling series.Starting in the 1960s, John...

Cuerpo y la Vida

By S. C. Ashour, Veronique M. P. Chevrier, Joanna Brunet, Stephen Marchesi

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Cuerpo Cuenta una Historia

By D. M. Brock, Joanna Brunet, Veronique M. P. Chevrier, Stephen Marchesi

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What Are the Summer Olympics

By Gail Herman, Stephen Marchesi

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What Are the Summer Olympics

By Gail Herman, Stephen Marchesi

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The Hero of Cinco De Mayo El Heroe De Cinco De Mayo

By Jose Angel Gutierrez, Stephen Marchesi

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Survival in the Sea

By Deborah Dennard, Linda Lingemann, Stephen Marchesi

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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.