Hilary Doyle Books

Doodle Art

By Rita Warner

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Jagdpanzer 38t Hetzer 1944 45 New Vanguard Series 36

By Hilary Doyle

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Panzerkampfwagen IV Ausf.G, H And J 1942–45

By Hilary Doyle, Tom Jentz, Hilary L. Doyle, Tom Jentz, Hilary Doyle, Tony Bryan (Illustrator)

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the Panzerkampfwagen Iv Was One Of The Most Numerous And Successful German Tanks Of World War Ii. Despite The Introduction Of The Panther And Tiger Tanks, The Pzkpfw Iv Remained The Backbone Of The...

Encyclopedia of German Tanks of Wwii (Encyclopedia)

By Peter Chamberlain

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Encyclopedia Of German Tanks Of World War Two

By Peter Chamberlain, Hilary Doyle

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Sturmgeschütz III Assault Gun 1940–42

By Hilary Doyle, Tom Jentz, Hilary L. Doyle, Hilary Doyle, Tom Jentz, Peter Sarson (Illustrator)

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the Workhorse Of The German Army That Swept Across Poland, France And Russia, The Sturmgeschütz Iii Saw Service In All Theatres Of World War Ii, Both In An Infantry Support Role And As A Tank Destr...

Flammpanzer German Flamethrowers 1941 45

By Hilary Doyle

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Flammpanzer German Flamethrowers 45

By Dorothy Fletcher

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Kingtiger Heavy Tank 1942 45

By Tom Jentz

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Tiger 1 Heavy Tank 1942 45

By Tom Jentz, Thomas L. Jentz

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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.