William M. Hammond Books

Normandy CMH Pub

By William M. Hammond

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Black Soldier White Army

By William M. Hammond, William T. Bowers, United States United States Army, George L. MacGarrigle

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Reporting Vietnam: Media and Military at War

By William M. Hammond, William Hammond

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Based on classified and recently declassified government documents - including Nixon's national security files - as well as on extensive interviews and surveys of press war coverage, Reporting Viet...

Normandy

By William Hammond

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Public Affairs

By William Hammond

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Public Affairs

By William Hammond

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Women's Army Corps

By William Hammond

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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.