John Gaskin Books

The heart

By John Gaskin

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Describes how the heart works, how blood travels through the body carrying oxygen, and how to prevent heart disease.

Le coeur

By John Gaskin

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Chaque volume décrit, de façon simple et précise, un organe et son fonctionnement. Des illustrations en couleurs et les expériences proposées ajoutent à l'intérêt du livre.

Traveller s Guide to Classical Philosophy

By Professor John Gaskin

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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.