Thomas Kelly Books

Payback

By Thomas Kelly, Kelly Thomas

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Best practices

By Robert Hiebeler

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What makes the world's top companies so adept at providing stellar customer service? How do they meet the needs of every customer and still turn healthy profits? And, most important, how can you ad...

Best Practices

By Thomas Kelly, Robert Hiebeler, Charles Kettem

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Battle of the Guns

By Thomas Kelly

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Studies in adult education.

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PAYBACK.

By Thomas. Kelly

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Payback

By Thomas Kelly

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The Rackets

By Thomas Kelly

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I'll be right back

By Mike Douglas

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Empire rising

By Kelly Thomas

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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.