Sara Kirkham Books

Teach Yourself Eating for Health

By Sara Kirkham

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Teach Yourself Eating for Health

By Sara Kirkham

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Ten rules for guaranteed weight loss

By Sara Kirkham

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Cholesterol The Essential Guide is the ultimate guide to help you manage your cholesterol levels and reduce your risk of cardiovascular disease. Discover what you really need to do to decrease leve...

The Essential Guide to Weight Loss

By Sara Kirkham

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Food for Health

By Sara Kirkham

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Teach Yourself Running

By Sara Kirkham

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Running

By Sara Kirkham

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Running is the ultimate way to get fit, yet we all know how incredibly painful it can be. This guide will give you the motivation, mindset, skills and techniques that you need to enjoy running and...

Beat Insomnia Quickly

By Sara Kirkham

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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.