Eliza Willard Books

New York minute

By Eliza Willard

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Makeup Shake-up

By Eliza Willard

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Misty (Mary-Kate) and Amber (Ashley) are sent to New York to find out why all the supermodels are making funny faces and turning cartwheels as they strut down the runway.

In Action 4: Operation Evaporation

By Ilse Wagner, Eliza Willard

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Misty (Mary-Kate) and Amber (Ashley) are sent to Bermuda to stop the evil Clive Hedgmorton-Smythe from taking all the water out of the earth's lakes, rivers, and oceans.

Mary-Kate & Ashley Sweet 16 4 Getting There

By Eliza Willard, Mary Kate Olsen

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Twins Mary-Kate and Ashley meet new friends while on filming a movie on location in Utah and Nevada, and one friendship leads to romance while the other leads to trouble.

Playing Games

By Eliza Willard

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When Ashley starts up a matchmaking service and gets a mystery applicant, there's no telling what will happen.

Cross Our Hearts

By Eliza Willard

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Mary-Kate & Ashley Sweet 16 9: All That Glitters

By Ilse Wagner, Eliza Willard

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Mary-Kate & Ashley Sweet 16 12: Dream Holiday

By Eliza Willard, Mary Kate Olsen

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Anything can happen when you're sweet sixteen ...

So Little Time 13: Love Is in the Air

By Ilse Wagner, Eliza Willard

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Chloe and Riley count down to Valentine's Day.

New York Minute: The Movie Novelization

By Eliza Willard

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Roxy and Jane Ryan skip school to pursue different agendas in New York City, but find themselves together on the same adventure.

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.