Donna Cunningham Books

Moon Signs

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If you think your astrological fate is sealed by your Sun sign, think again! Your emotions, instincts, intuition, and most private passions are dominated by your Moon sign. In this eye-opening volu...

Flower remedies handbook

By Donna Cunningham

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Healing Pluto problems

By Donna Cunningham

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Being a lunar type in a solar world

By Donna Cunningham

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The consulting astrologer's guidebook

By Donna Cunningham

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The moon in your life

By Donna Cunningham

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An astrological guide to self-awareness

By Donna Cunningham

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An Astrological Guide to Self Awareness

By Donna Cunningham

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Further dimensions of healing addictions

By Donna Cunningham

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Astrology and spiritual development

By Donna Cunningham

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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.