David Armine Howarth Books

Escape Alone

By David Howarth

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A NEAR RUN THING.

By David Howarth

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The Voyage Of The Armada: The Spanish Story

By David Howarth, David Armine Howarth, David J. Howarth, James H. Sutton Jr. And Sylvia Leal Carvajal Collection

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In May of 1588, on the order of Spain's King Philip, 30,000 soldiers and sailors armed with arquebus and musket set out to sea. A larger fleet had never before been assembled. In the Voyage of the...

Trafalgar: The Nelson Touch

By David Howarth

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1066: The Year of the Conquest

By David Howarth

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Pursued by a bear

By David Howarth

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Tahiti

By David Howarth

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Escape Alone

By David Howarth

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Escape Alone

By David J. Howarth

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We die alone.

By David Howarth

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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.