David Thomas Books

George Frideric Handel Samson Oratorio

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The Pragmatic Programmer: From Journeyman to Master

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Ward Cunningham Straight from the programming trenches, The Pragmatic Programmer cuts through the increasing specialization and technicalities of modern software development to examine the core pro...

Programming Ruby: A Pragmatic Programmer's Guide

By Andrew Hunt, Dave Thomas, David Thomas

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Royal admirals, 1327-1981

By David Arthur Thomas

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Punch Book of Utterly British Humour

By David Thomas

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Hard Sell

By David Thomas

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Creature Comforts

By David Thomas

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Pick of Punch

By David Thomas

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Pick of Punch

By David Thomas

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Punch Book of Utterly British Humour

By David Thomas

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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.