Ashley Olsen Books

Calling All Boys

By Mary Kate Olsen

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My Sister the Supermodel

By Mary Kate Olsen

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To Snoop Or Not To Snoop

By Mary Kate Olsen

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Oh no! Mary-Kate and Ashley have to do history projects. But Ashley's found a way to make her project fun - she's partners with Pokey Valentine, the boy of her dreams. It's the perfect way to get c...

The Sleepover Secret

By Judy Katschke

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How To Flunk Your First Date

By Megan Stine

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It's A Twin Thing

By Judy Katschke

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Never Been Kissed

By Mary Kate Olsen

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The Perfect Summer

By Mary Kate Olsen

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Our Story

By Ashley Olsen

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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.