Amy Goldman Koss Books

Marla, the only Jewish student in her fourth-grade class, wishes she celebrated Christmas like her best friend Lucy, until one year when she decides to learn all about Hanukkah and to teach her fam...

Where Fish Go in Winter: And Other Great Mysteries

By Amy Goldman Koss

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The Cheat

By Amy Goldman Koss

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Gossip Times Three

By Amy Goldman Koss

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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.