Kathryn Holmes Books

The distance between lost and found

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Sophomore Hallie Calhoun, her former friend Jonah, and her new friend Rachel leave a church youth group hike in the Great Smoky Mountains and become lost for five days, struggling to survive as Hal...

The Nidoviruses

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Madison Morris Is NOT a Mouse

By Kathryn Holmes, Ariel Landy

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GIS simulation of the earliest hominid colonisation of Eurasia

By Kathryn Holmes

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How it feels to fly

By Kathryn Holmes

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Sam has always known she'd be a professional dancer -- but that was before her body betrayed her, developing unmanageable curves in all the wrong places. Lately, the girl staring back at Sam in the...

How It Feels to Fly

By Kathryn Holmes

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The Distance Between Lost and Found

By Kathryn Holmes

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Distance Between Lost and Found

By Kathryn Holmes

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Nidoviruses

By Kathryn Holmes, Stanley Perlman

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Technology Enabled Mathematics Education

By Kathryn Holmes, Catherine Attard

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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.