Mark Orwoll Books

Sams teach yourself e-Travel today

By Mark Orwoll

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John Wayne Speaks: The Ultimate John Wayne Quote Book

By John Wayne, Mark Orwoll

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With more than 1,100 impeccably sourced quotes from throughout John Wayne's 172-film career, John Wayne Speaks: The Ultimate John Wayne Quote Book provides what has often been missing from other Du...

John Wayne Speaks

By Mark Orwoll

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Cross Purposes

By Mark Orwoll

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Cross Purposes

By Mark Orwoll

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Just One Little Hitch

By Mark Orwoll

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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.