Thomas Duffy Books

Medical Complications During Pregnancy

By Gerard Burrow, Joshua Copel, Thomas Duffy

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This new edition presents multidisciplinary coverage on the full spectrum of complications associated with pregnancy, including pre-existing conditions. Thirty one expert contributors offer readers...

Stockboy

By Mr. Thomas Patrick Duffy

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The Separation

By Thomas Duffy

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Making Sense

By Bandy X. Lee, Thomas Duffy

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Making Sense

By Nancy Olson, Thomas Duffy, Bandy Lee

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Making Sense

By Nancy Olson, Thomas Duffy, Bandy Lee

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Making Sense

By Nancy Olson, Thomas Duffy, Bandy Lee

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VAT Registration in the UK

By Thomas Duffy

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Social Work

By Thomas Duffy

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Designing usable texts

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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.