Rachael Allen Books

The revenge playbook

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Working together to humiliate the revered high school football team that has been the source of their unhappiness, four teen girls make unexpected discoveries in their effort to steal the one thing...

Harley Quinn: Ravenous

By Rachael Allen

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Harley Quinn's journey gets even more chaotic as she falls in love and embraces her inner Super-Villain in the thrilling second book of the Harley Quinn origin trilogy.“Allen’s Harley i...

Harley Quinn: Redemption

By Rachael Allen

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When girls in Gotham City go missing, Harley Quinn is determined to track down their kidnapper. But the only way to outsmart a villain is to engage in a little villainy herself. Don't miss the adre...

The Summer of Impossibilities

By Rachael Allen

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A Taxonomy of Love

By Kevin T. Collins, Rachael Allen

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La taxonomia del amor

By RACHAEL ALLEN, Jeannine Emery

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17 first kisses

By Rachael Allen

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Claire Jenkins has finally found a boy worth kissing, but when she discovers that her best friend Megan also has feeling for him, Claire must decide what she is willing to risk to get what she wants.

17 First Kisses

By Rachael Allen

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Revenge Playbook

By Rachael Allen

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Faber and Faber Poetry Diary 2021

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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.