Martin Duffy Books

Not Yet

By Bill Duffy, Martin Duffy

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Not Yet

By Bill Duffy, Martin Duffy

Average: 0.00, 0 Ratings

Barney and Molly A True Dublin Love Story

By Martin Duffy

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Understanding Drug Selling in Communities

By Joseph Rowntree Foundation.

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Once upon a universe

By Martin Duffy

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In the first story, a ten-year-old boy discovers that dreams are a way of traveling through the universe, and in the second, a boy is caught in the middle of a battle between his robot Buddy and h...

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.