Graham Chaffee Books

The Big Wheels

By Graham S. Chaffee

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Good dog

By Graham Chaffee

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"Ivan, who is plagued by terrible nightmares about chickens and rabbits, is a good dog-- if only someone would notice. Readers accompany the stray as he navigates dog society, weathers pack politic...

To have to hold

By Graham Chaffee

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Set in October 1962, while the world holds its collective breath awaiting the possibly apocalyptic climax of the unfolding Cuban Missile Crisis, the banality of everyday life goes on--and Lonnie an...

Now 2

By Graham Chaffee, Sammy Harkham, Nick Thornborrow

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Buen Perro

By Lorenzo Diaz Buendia, Graham Chaffee

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Buen perro

By Graham Chaffee, Lorenzo Diaz Buendia

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Light It Shoot It

By Graham Chaffee

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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.