David Harmer Books

Elephant Dreams

By Paul Cookson, Ian McMillan, David Harmer

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The third book in a three-in-one poetry series, "Sandwich Poets", featuring the poems of Paul Cookson, Ian McMillan and David Harmer.

The Prime Minister Is 10 Today

By David Harmer, Sam Hearn, Poems Chosen By David Harmer, Illustrations By Sam Hearn

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A very funny anthology of poems exploring what children would do if they were in charge. Bossing parents around? Yes! Only ever eating ice cream? Maybe. Going to school? Read it and see . . .from `...

Summertime Blues

By David Harmer, Harmer

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Poetry Works

By Mary Green

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Poetry Works

By Mary Green

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Age of Steam and Other Myths

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Creaking down the corridor.

By David Harmer

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Big red undies.

By Paul Cookson

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Xpathways Stretch Curl

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Spectacular schools

By David Harmer, Paul Cookson

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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.