Robert Cowley Books

What If 2

By Various

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What Ifs? of American History: Eminent Historians Imagine What Might Have Been

By Robert Cowley

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A collection of essays on pivotal moments in American history includes Caleb Carr on America had there been no Revolution, and Robert Dallek on what might have happened if JFK had not been assassin...

The collected What if

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What If? II

By Robert Cowley

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What if Lincoln didn't abolish slavery? What if an assassin succeeded in killing FDR in 1933? This volume presents 25 intriguing "what if..." scenarios by some of today's greatest historical minds-...

What Ifs? of American History

By Robert Cowley

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Did Eisenhower avoid a showdown with Stalin by not taking Berlin before the Soviets? What might have happened if JFK hadn't been assassinated? This new volume in the widely praised series presents...

Experience of War

By Robert Cowley

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West Point

By Arthur Miller, David Halberstam, Stephen E. Ambrose, George Plimpton, William F. Buckley

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The Reader s Companion to Military History

By Robert Cowley, Geoffrey Parker

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What If... Vol. 1

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What If...

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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.