Lisi Harrison Books

It's Not Easy Being Mean

By Lisi Harrison

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Bratfest at Tiffany's

By Lisi Harrison

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When male students from Briarwood join the all-girl Octavian Country Day at the beginning of eighth grade, Massie makes a rule that none of the girls on the Pretty Committee can have anything to do...

P. S. I Loathe You

By Lisi Harrison

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The Pretty Committee Strikes Back

By Lisi Harrison

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Claire

By Lisi Harrison

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Massie

By Lisi Harrison

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When Massie is kicked out of her exclusive riding camp and her parents insist that she get a summer job, she becomes the highest-selling Be Pretty Cosmetics girl ever by ignoring the company's phil...

Kristen

By Lisi Harrison

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As the only member of the Pretty Committee clique not going on an exotic summer vacation, middle-schooler Kristen might just find romance sticking around to tutor math and attend a secret summer sc...

Top of the Feud Chain

By Lisi Harrison

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Charmed and Dangerous

By Lisi Harrison

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Four betas and their alpha--Massie Block, Alicia Rivera, Dylan Marvil, Kristen Gregory, and Claire Lyons--"clique" at the New Year's Yves party.

The Clique Summer Collection 5 Book Set

By Lisi Harrison

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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.