Cathy Hopkins Books

Crisis de verano

By Cathy Hopkins

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Lia must choose between an old boyfriend and a new one.

Conflictos de amor

By Cathy Hopkins

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Becca, who has had bad luck with boys recently, takes a dare to kiss the next guy she sees, who happens to be Lal Lovering, and when she realizes that she wants a real boyfriend, she begins to unde...

Todos los amigos juntos

By Cathy Hopkins

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El chico perfecto

By Cathy Hopkins

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India Jane thought that Joe might be her soul mate until she realizes that he isn't interested in a serious relationship, so with the help of her friends she sets out to try to find the perfect boy...

Mates, dates and inflatable bras

By Cathy Hopkins

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Mates, Dates and Mad Mistakes

By Cathy Hopkins

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Izzie is restless, and eager to be treated like an adult. So she decides it's time to make some changes. But the new Izzie comes with new problems. First, there is Josh Harper, an older, cute but w...

Mates, Dates and Pulling Power (Mates, Dates and Sequin Smiles)

By Cathy Hopkins

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Nesta is devastated. She has to wear braces. She thinks that no boy will ever look at her again without thinking of the killer shark in Jaws. And practicing a smile that doesn't show her teeth isn'...

Mates, dates and sleepover secrets

By Cathy Hopkins

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Mates, Dates, And Sleepover Secrets

By Cathy Hopkins

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Mates, Dates and Portobello Princesses

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.