Tony Gillen Books

Selling Through Customer Service

By Tony Gillen

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The Coaching Skills Activity Pack Trainer s Activity Pack

By Angela Wilde, Tony Gillen

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Getting on the Upside of Hurricanes

By Tony Gillen

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"This book tells you everything you need to know to protect yourself, your home and your family - before, during and after a natural disaster." The idea of the book is not just to help you make pre...

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.