Peter Doyle Books

First World War Leaders And Commanders

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Golden Flavours of Summer

By Peter Doyle, Rodney Weidland

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The British soldier of the First World War

By Peter Doyle

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"This book explores the life of the average British 'Tommy' of the Great War, in battle and at rest, in training, and on his return home. Illustrated with evocative images of the war, and items of...

ARP and Civil Defence in the Second World War Shire Library

By Peter Doyle

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British Postcards Of The First World War

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British Postcards of the First World War

By Peter Doyle

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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.