Cathy Hopkins Books

69 Things to Do

By Cathy Hopkins

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The World's Best Lightbulb Jokes

By Cathy Hopkins, Edward Philips

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Dancing Over the Hill: The new feel good comedy from the author of The Kicking the Bucket List

By Cathy Hopkins

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"Cait and Matt have been married for thirty years. They are rock solid. An inspiration to others. Stuck together like glue. But Cait can't shake off the feeling that something is missing. The whole...

Joy of Aromatherapy

By Cathy Hopkins

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69 Things to Do When You RE Not Doing It

By Cathy Hopkins, Gray Joliffe

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Double trouble

By Cathy Hopkins

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Like most Scorpios, Eve has secrets that no one knows about - not even her twin sister Lilith. As the younger twin, Eve is often led by the dominant Lilith, but when Eve is chosen to be Zodiac Girl...

Mates Dates and Cosmic Kisses

By Cathy Hopkins

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Mates Dates and Great Escapes Mates Dates...

By Cathy Hopkins

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Mates Dates and Sole Survivors

By Cathy Hopkins

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Mates Dates and Chocolate Cheats Mates Dates...

By Cathy Hopkins

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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.