David Crystal Books

Walking English

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Combines personal reflections, historical allusions, and traveler's observations about the author's encounters with language and its users throughout the English-speaking world.

By Hook or By Crook

By David Crystal

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Making a Point

By David Crystal

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Making sense

By David Crystal

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Making Sense

By David Crystal

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The story of English in 100 words

By David Crystal

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Spell it out

By David Crystal

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This is an enlightening tour of English spelling that untangles 'stationery' from 'stationary' - and explains why the 'i before e except after c' rule is so misleading. Why is there an 'h' in ghost...

Spell it out

By David Crystal

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Grammatical analysis of language disability

By David Crystal

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Introduction to language pathology.

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.