Mary Hartley Books

How to Listen So That People Will Talk

By Mary Hartley

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Anger Management

By Mary Hartley, Julie Hough

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Lord of the Flies William Golding

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Las mujeres inteligentes siempre consiguen lo que quieren

By Mary Hartley

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Do you feel like you're not heard but you don't want to have to scream? Personal development coach Mary Hartley explains the secrets of assertiveness - of how to communicate with other people in wa...

Body Language at Work

By Mary Hartley

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Controla tu estres The Good Stress Guide Vivir Mejor Guas De Crecimiento Personal Better Living Personal Growth Guides

By Mary Hartley

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Whs Gcse Literature Guide

By Mary Hartley

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The Busy Womans Handbook

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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.