John Lockyer Books

Exploring Mars

By John Lockyer

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Find out how scientists are finding out about Mars through space probe expeditions and robots.

Bug Club Independent KS2 Red Plus Pack 2023

By Pauline Cartwright, Diana Noonan, Deb Loughead, John Lockyer, Tina Shaw

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Elapsed time at the Olympics

By Dianne Irving, John Lockyer

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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.