Thomas Clavin Books

The DiMaggios: Three Brothers, Their Passion for Baseball, Their Pursuit of the American Dream

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More than 350 sets of brothers have played in the major leagues since the 1870s, but few have had the skill, the charisma, or the success of the DiMaggio brothers. Joe, "The Yankee Clipper," is an...

Dark Noon: The Final Voyage of the Fishing Boat Pelican

By Thomas Clavin, Tom Clavin

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The Ryder Cup

By Thomas Clavin, Bob Bubka

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Sir Walter

By Thomas Clavin, Tom Clavin

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Juba This and Juba That

By Thomas Clavin, Darlene Hopson, Derek S. Hopson

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Lightning Down

By Tom Clavin, George Newbern

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The Last Hill

By Tom Clavin, George Newbern, Bob Drury

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Blood and Treasure

By Tom Clavin, Bob Drury

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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.