Gordon R. Sullivan Books

Hope Is Not a Method

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Since the end of the Cold War, the United States Army has been reengineered and downsized more thoroughly than any other business. In the early 1990s, General Sullivan, army chief of staff, and Col...

Hope is not a method

By Gordon R. Sullivan

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America s Army

By Gordon R. Sullivan

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Seeing the elephant

By Gordon R. Sullivan

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La Esperanza No Es Un Metodo

By Gordon R. Sullivan, Michael V. Harper

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Hope Is Not a Method

By Gordon R. Sullivan, Michael V. Harper

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Criminal Law

By Gordon R. Sullivan, A. P. Simester

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Tqwwh ynh syth

By Gordon R. Sullivan

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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.