John H. Morrow Jr. Books

The Great War

By Morrow John Howard, John Morrow Jr., John Howard Morrow

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The Great War

By J. Morrow Jr.

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A Yankee ace in the RAF

By Bogart Rogers

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Suffused with the romance of flight and the harsh realities of aerial combat, Rogers's letters to his fiancee, Isabelle Young, vividly detail his wartime experiences against a lethal and elusive op...

A Yankee Ace in the RAF

By John H. Morrow Jr., Earl Rogers

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German air power in World War I

By John Howard Morrow

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Great War

By John H. Morrow Jr.

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Yankee Ace in the RAF

By John H. Morrow Jr., Earl Rogers

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The Great War in the air

By John Howard Morrow

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The impact of the two world wars in a century of violence

By John Howard Morrow

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Great War

By John H. Morrow Jr.

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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.