Mary Hoffman Books

Ip Dip Sky Blue A Young Lion Storybook

By Mary Hoffman

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Bump In The Night The Screaming Field Stories Under The Bedclothes

By Mary Hoffman

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A chapter bookk sequel to New York Times bestseller and finalist Kate Greenaway Medal, Amazing Grace and Boundless Grace.School’s out . . . and of course that means it’s time for fun! Grace and her...

Asombrosa Graciela Grade 4 Leveled Library

By N A

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Nancy No-Size

By Mary Hoffman

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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.