Mark McKenzie Books

The wildest dream

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Everest was, to George Mallory, 'the wildest dream'. This gentleman adventurer was obsessed with taming the unconquered peak. But in 1924 he and climbing partner Sandy Irvine disappeared forever in...

American public policy

By Clarke E. Cochran

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Mark Markus Island Adventures

By Mark McKenzie

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The Magical Doongie

By Letty Amor Snell, Billy Harvey, Mark McKenzie

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Island Adventures Book Collection

By Letty Amor Snell, Billy Harvey, Mark McKenzie

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Go Driver Go

By Letty Amor Snell, Billy Harvey, Mark McKenzie

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Magical Doongie

By Letty Amor Snell, Billy Harvey, Mark McKenzie

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Island Adventures Book Collection

By Letty Amor Snell, Billy Harvey, Mark McKenzie

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American Public Policy

By N. Joseph Cayer, Clarke E. Cochran, Lawrence C. Mayer, Mark McKenzie, T. R. Carr

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Spidion World

By Mark McKenzie

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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.