Alan Christopherson Books

Accounting LIFEPAC Unit 3 Analyzing And Journalizing Transactions

By Daniel Ritzman, Alan Christopherson, Jennifer Davis

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Europe Comes To America

By Alpha Omega Publications, Alan Christopherson, Theresa Buskey, Kathleen McNaughton

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Lifepac homeschool curriculum from Alpha Omega Publications is a student-paced homeschool program based around a set of Lifepac workbooks that include biblically-based lessons, high-interest exerci...

British America

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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The American Revolution

By Alpha & Omega Publishing, Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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A Firm Foundation

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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A Growing Nation

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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The Civil War

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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Gilded Age To Progressive Era

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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A World In Conflict

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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Cold War America

By Alpha Omega Publications, Alan Christopherson, Kathleen McNaughton

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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.