Gillian Johnson Books

Very Hungover Caterpillar

By Gillian Johnson, Emlyn Rees, Josie Lloyd

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The lost sock

By Gillian Johnson

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When a man loses one of his favourite pair of socks at the laundromat, he sets out on a quest to find out what happens to lost socks, and why every sock drawer contains a plethora of single socks.

Saranohair

By Gillian K. Johnson

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How to Draw Everything

By Gillian Johnson

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My Holiday Drawing Journal

By Lonely Planet Kids Staff, Gillian Johnson

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Vacation Drawing Journal

By Lonely Planet Kids Staff

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Holiday Scrapbook My

By Lonely Planet Kids Staff, Gillian Johnson

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Monkey Lou

By Vicky Fieldhouse, Gil Johnson

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How to Draw Everything

By Gillian Johnson

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How to Paint Everything in Watercolour

By Gillian Johnson

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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.