Norman Lock Books

Super quick Multiplying and Dividing in Your Head 30 Second Challenge

By Norman Lock

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Short Cuts to Fractions 30 Second Challenge Summary Sheets

By Norman Lock

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Fairy Tale Review

By Wendy Weitman, Mary Caponegro, Prof. Jack Zipes, Stacey Richter, Matthew Rohrer, Marjorie Sandor, Joshua Beckman, Sarah Veglahn, Brent Hendricks, Julie Choffel, Sarah Hannah, Kim Addonizio, Kate Bernheimer, Norman Lock, Francine Prose, Monica Fambrough, Donna Tartt, Marina Warner

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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.