Cynthia Johnson Books

Offers advice to parents on how to make doing daily homework with their middle school children a positive experience, and features a quick reference tool on topics including math, English, science,...

Kaplan Learning Power Third Edition

By Kaplan Publishing, Cynthia Johnson

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What smart girls know about the SAT

By Cynthia Johnson

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No Child Left Behind

By Drew Johnson

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Kaplan AP Physics B C

By Cynthia Johnson

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Kaplan AP Macroeconomics Microeconomics 2006 Edition

By Cynthia Johnson

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Caffeine Will Not Help You Pass That Test

By Kaplan Publishing

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Test Book for Wordly Wise 3000

By Cynthia Johnson, Drew Johnson

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Wordly Wise 3000 in Dividual

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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.