Jack Kavanagh Books

Robert E. Lee

By Jack Kavanagh

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Shoeless Joe Jackson

By Jack Kavanagh

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Barry Sanders, Rocket Running Back.

By Jack Kavanagh

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Irish in America In America Series

By James E. Johnson, Jack Kavanagh

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Barry Sanders

By Jack Kavanagh

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Traces the life of the Detroit Lion running back from his childhood and college career at Oklahoma State University to his professional career, religious affiliations, and personal interests.

Great Athletes of the 20th Century

By Jack Kavanah

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Sports great Larry Bird

By Jack Kavanagh

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Describes the life and career of the noted Boston Celtics basketball player, from his childhood to the present.

Sports great Patrick Ewing

By Jack Kavanagh

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Describes the life and career of the noted New York Knicks basketball player, from his childhood to the present.

Sports great Joe Montana

By Jack Kavanagh

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Follows the life of the San Francisco 49ers quarterback, from his childhood to the present.

Walter Johnson

By Jack Kavanagh

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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.