Jenny T. Colgan Books

Spandex and the City

By Jenny T. Colgan

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Spandex and the City

By Jenny T. Colgan

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Spandex and the City

By Jenny T. Colgan

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Resistance Is Futile

By Jenny T. Colgan

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Flora is forced to move back to the tiny island of Mure from the bright lights of London. It's tough: even the beautiful landscapes and bright blue sea can't lift her spirits - she's too busy looki...

Day She Saved the Doctor

By BBC Children S Books Staff, Jenny T. Colgan, Jacqueline Rayner, Dorothy Koomson

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Doctor Who the Day She Saved the Doctor

By Jenny T. Colgan, Susan Calman, Jacqueline Rayner, Dorothy Koomson

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Doctor Who

By Jenny T. Colgan

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Doctor Who

By Trudi Canavan, Stella Duffy, Jenny T. Colgan, Jake Arnott, Cecelia Ahern

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Doctor Who

By Jenny T. Colgan, David Llewellyn, Justin Richards, James Goss

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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.