Kirsten Mayer Books

Alvin and the Chipmunks: A Chipmunk Valentine

By Kirsten Mayer

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Justice League Classic: I Am Aquaman

By Kirsten Mayer

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When members of the Justice League visit Atlantis for a tour with their friend King Arthur, they don't anticipate also running into Black Manta! Luckily, Aquaman is ready to face off with his nemesis.

Super Hero Squad: Iron Man Springs Into Action!

By Marvel Entertainment Group

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"Count along from one to ten as Squad leader Iron Man zooms around Super Hero City to gather his friends for a rescue mission! Hero up!"--P.[4] of cover.

Despicable Me: The World's Greatest Villain

By Kirsten Mayer

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Gru wants to be the greatest villain ever, so he decides to steal the moon! Little does he know, another villain named Vector has a similar plan, beginning with stealing Gru's shrink ray and his th...

Counting Chicks: A Hop Movie Tie-In

By Kirsten Mayer

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The Muppets: The Muppets Theater Stage Set: A Punch Out-and-Play Model Book

By Kirsten Mayer

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Transformers Prime: Meet Team Prime

By Kirsten Mayer

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Three kids discover robots called Autobots, led by Optimus Prime, here on Earth on a mission to fight the evil Decepticons.

Despicable Me 2: Undercover Super Spies

By Kirsten Mayer

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Not too long ago, Gru gave up being a villain for being a dad. But when the world's biggest organization against treachery, the Anti-Villain League, recruits the former baddie to go on a top secret...

Monster High: Ghoul Spirit: A Monster High Doodle Book

By Kirsten Mayer

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The Boxtrolls

By Kirsten Mayer

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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.