Deborah Marcero Books

Sadie's Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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Jess's Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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Maya's Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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My heart is a compass

By Deborah Marcero

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Rose's heart is set on discovering something that's never been found. She just doesn't know where to find it. So she sets off on a wondrous journey, bounding from one spectacular world to the next.

Haylee and Comet

By Deborah Marcero

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Out of a Jar

By Deborah Marcero, Ralph Lister

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En un Tarro de Cristal

By Deborah Marcero

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En un pot de vidre

By Deborah Marcero

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Sadie s Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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Jess s Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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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.