Leon Gray Books

Exploring Technology

By Tim Judson, Leon Gray, John Bassett, Jen Green

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Virtual crime

By Leon Gray

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"Shows how forensics helps solve crimes committed on the internet"--Provided by publisher.

Transport

By Leon Gray

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The colourful explanations in this book help your child to learn about different types of vehicles from tanks to taxis, planes to trains to automobiles.

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.

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Zinc Elements

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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