John Devolle Books

J apprends a programmer avec Python

By Pascal Varejka, John Devolle, Matt Preston, Louie Stowell, Rosie Dickins

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Your SENSE Ational Human Body

By Emma Young, John Devolle

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Atoms

By John Devolle

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This book will blow your child's mind! Big Science explained simplyThe perfect picturebook to introduce little minds to big ideas! Atoms combines bold, colourful illustrations with jokes and...

Planets

By John Devolle

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This book will blow your child's mind! Big Science explained simplyThe perfect picturebook to introduce little minds to big ideas! Planets combines bold, colourful illustrations with jokes a...

This book will blow your child's mind! Big Science explained simplyThe perfect picturebook to introduce little minds to big ideas!Germs combines bold, colourful illustrations with jokes and incredi...

Brains

By John Devolle

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THE PERFECT PICTURE BOOK TO INTRODUCE LITTLE MINDS TO BIG IDEAS!Brains combines bold, colourful illustrations with jokes and incredible science facts to introduce young readers to the amazing wobbl...

Understanding Coding Using Python

By John Devolle, Louie Stowell

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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.