Donohue John J. Books

Complete kendo

By Donohue John J.

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Warrior dreams

By Donohue John J.

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Foundations of employment discrimination law

By Donohue John J.

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Tengu

By Donohue John J.

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A renegade martial arts Sensei known as the Tengu has been recruited to train a splinter group of Asian terrorists with links to Al Qaeda. The Tengu mourns the vanished prestige and cultural herita...

Tengu

By John Donohue, Donohue John J.

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Kage

By Donohue John J.

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Complete Kendo

By Donohue John J.

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A lam al adab al Arabi al mu asir

By Ines Weinrich, Leslie Tramontini, Donohue John J., Nara Kanj

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Herding the ox

By Donohue John J.

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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.