Katie Cotugno Books

Liar's Beach

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The New York Times bestseller!A new take on Agatha Christie’s classic murder mystery The Mysterious Affair at Styles, with iconic detective Hercule Poirot recast as a brilliant, brash teen gi...

Rules for Being a Girl

By Katie Cotugno, Candace Bushnell

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Meet Cute

By Jocelyn Davies, Katie Cotugno, Emery Lord, Jennifer L. Armentrout, Dhonielle Clayton

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Meet Cute

By Huntley Fitzpatrick, Jocelyn Davies, Katie Cotugno, Jennifer L. Armentrout, Dhonielle Clayton

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Heavy Hitter

By Katie Cotugno

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How to Love

By Katie Cotugno

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99 Days

By Katie Cotugno

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Rules for Being a Girl

By Katie Cotugno, Candace Bushnell

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How to Love

By Katie Cotugno

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99 days

By Katie Cotugno

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"Molly Barlow is facing one long, hot summer--99 days--with the boy whose heart she broke and the boy she broke it for: his brother"--Amazon.com.

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.