Kate Messner Books

Jaden's summer visit with her meteorologist father, who has just returned from spending four years in Russia conducting weather experiments not permitted in the United States, fills her with appreh...

Wake Up Missing

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Sugar and Ice

By Kate Messner

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Eye of the Storm

By Kate Messner

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Eye of the Storm

By Kate Messner

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Wake up Missing

By Kate Messner

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Seamonster s first day

By Kate Messner

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A young sea monster experiences his first day of school and, after a rocky start, he makes friends and has fun.

Over and under the snow

By Kate Messner

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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.