David Crystal Books

By Hook Or By Crook: A Journey in Search of English

By David Crystal

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As They Say in Zanzibar

By David Crystal

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Listen to Your Child

By David Crystal

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The English Language

By David Crystal

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Shakespeare s Words

By David Crystal, Ben Crystal

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In this fascinating survey of everything from how sounds become speech to how names work, David Crystal answers every question you might ever have had about the nuts and bolts of language in his us...

Penguin Book of Facts

By David Crystal

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Stories of English

By David Crystal

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The Penguin Encyclopedia

By David Crystal

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The Penguin Concise Encyclopedia

By David Crystal

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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.