John Gallagher Books

Max Meow Book 1: Cat Crusader

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A USA TODAY Bestseller! Meet a secret superhero with CAT-ITUDE--Max Meow, Cat Crusader--in this purr-fectly awesome, hiss-sterically funny graphic novel series just right for fans of Dog Man and In...

Max Meow Book 3

By John Gallagher

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The Dreamer

By John J. Gallagher

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Perfect Enemies

By John Gallagher, Chris Bull

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Good health with vitamins and minerals

By Gallagher John

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Africa and the Victorians

By Wm. Roger Louis, Alice Denny, John Gallagher, R. Robinson

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India

By John Gallager

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Leader to Leader LTL A special plement presented by Fuqua School of Business at Duke University J B Single Issue Leader to Leader

By Blair Sheppard, Sim B. Sitkin, Norman L. Christensen, John Gallagher, LeBoeuf, Sanyin Siang, Jeffrey T. Glass, Thomas J. Jr. Tierney, William Boulding, E. Allan Lind, Raymond D. Smith

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The basis for Christian ethics

By Gallagher John

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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.