Jose Maria Cardona Books

Meet Shimmer and Shine! (Shimmer and Shine)

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Nickelodeon's new animated show follows the magical adventures of genie sisters, Shimmer and Shine, and their human best friend Leah. A sparkle-filled read for girls and boys ages 4 to 6, this Step...

Rugrats

By Cathy East Dubowski, Mark Dubowski, Jose Maria Cardona

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Clifford Activity

By Elizabeth Bennett, Jose Maria Cardona

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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.