John Holdren Books

Classics for young readers

By Jayoung Cho, John Holdren

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Myths Of Ancient Greece and Rome K12

By John Holdren

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CLASSICS for YOUNG READERS (Volume 6)

By John Holdren

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Classics for Young Readers (Volume 2)

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CLASSICS for YOUNG READERS - Volume 8 (Volume 8)

By John Holdren

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The invaluable grade-by-grade guide (kindergarten—sixth) is designed to help parents and teachers select some of the best books for children.Books to Build On recommends:• for kindergartners, livel...

What Your Kindergartner Needs to Know (Revised and updated)

By E. D. Hirsch, John Holdren

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Help your child exceed the Common Core standards with the revised and updated What Your Kindergartner Needs to Know Designed for use by parents and teachers, this groundbreaking first volume in t...

Conversion of Military R d

By Judith Reppy, John Holdren, Vsevolod Avduyevsky, Joseph Rotblat

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Science Magazine s State of the Planet 2008 2009

By Richard Alley, Science Magazine Editors, Shardul Agrawala, Adrian Cho, Donald Kennedy

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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.