Jack Cavanaugh Books

The pride and the passion

By Jack Cavanaugh

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Quest for the promised land

By Jack Cavanaugh

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Daughter of Two Nations

By Jack Cavanaugh

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Tunney

By Jack Cavanaugh

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Among the legendary athletes of the 1920s, the unquestioned halcyon days of sports, stands Gene Tunney, the boxer who upset Jack Dempsey in spectacular fashion, notched a 77—1 record as a pri...

Tunney

By Jack Cavanaugh

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A Hideous Beauty Kingdom Wars Series 1

By Jack Cavanaugh

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Every day they slip across our borders to infiltrate our government, our schools, our neighborhoods. Homeland security can't stop them. The armed forces are no threat to them. Powerful and unsee...

Tartarus

By Jack Cavanaugh

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The puritans

By Jack Cavanaugh

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Young Drew Morgan has an enviable position. Handpicked by Bishop Laud, next to the king the most powerful man in England, it is his assignment to infiltrate Puritan villages, turn over "traitors" t...

The colonists

By Jack Cavanaugh

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The patriots

By Jack Cavanaugh

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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.