Paul M. Edwards Books

This reference work identifies more than 400 hills, outposts, complexes and phase lines that were key components. Each entry details major operations fought in the area, the area's strategic value...

Small United States and United Nations warships in the Korean War

By Paul M. Edwards

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This volume delivers the difficulties of mobilizing the aging American fleet, and the design and specification considerations of the support vessels needed for the new war effort. It lists the indi...

World War I on Film

By Paul M. Edwards

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The Korean War

By Paul M. Edwards

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"The Korean War: A Historical Dictionary is designed to provide brief but helpful information about all aspects of the war including units involved, the United Nations, political and military actio...

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.