Marissa Valdez Books

Ambitious Girl

By Marissa Valdez, Meena Harris

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Agata Holmes 1. Primer dia de cole

By Robbie Arnett, Elizabeth Olsen, Marissa Valdez, Roberto Vivero Rodriguez

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Is for Ambitious

By Marissa Valdez, Meena Harris

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Esme's Birthday Conga Line

By Lourdes Heuer Illustrated By Marissa Valdez

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Esme always has a plan. A funny and sweet early illustrated chapter book about a problem-solving girl who has to manage her own birthday bash. For fans of Dory Fantasmagory.Esme lives with her gran...

Esme's Birthday Conga Line

By Lourdes Heuer Illustrated By Marissa Valdez

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Troop Esme

By Lourdes Heuer Illustrated By Marissa Valdez

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Esme always has a plan. A funny and sweet early illustrated chapter book about a problem-solving girl who decides to start her own badge-earning troop . . . and makes a new friend along the way. Fo...

Who s in Charge

By Jenny Klion, Stephanie Allain Bray, Marissa Valdez

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Who's in Charge?

By Stephanie Allain Jenny Klion Illustrated By Marissa Valdez

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A People Magazine Back-to-School SelectionWith its infectious refrain, this powerful, age-appropriate picture book for young children underscores kids’ right to set boundaries—and take...

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.