Duncan Barrett Books

GI Brides The Wartime Girls Who Crossed the Atlantic for Love

By Duncan Barrett, Nuala Calvi

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Men of letters

By Duncan Barrett

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When the First World War broke out, the Post Office was the biggest employer in the world, with its own company of volunteer part-time soldiers, The Post Office Rifles. Suddenly catapulted into con...

Star Trek

By Duncan Barrett, Michele Barrett

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GI Brides

By Duncan Barrett, Nuala Calvi

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GI brides

By Duncan Barrett

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Sugar Girls

By Duncan Barrett, Nuala Calvi

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Jessie s Story

By Duncan Barrett, Calvi

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Margery s Story

By Duncan Barrett, Calvi

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Kathleen s Story

By Duncan Barrett, Calvi

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Untitled 4

By Duncan Barrett, Nuala Calvi

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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.