Kathryn Lay Books

How to rule the school

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As part of an experiment in a social studies class, fifth graders Justin Davies and Andrea Carey are declared king and queen for two weeks, but they soon learn that royal life is a royal pain as th...

Crown me!

By Kathryn Lay

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The Organized Writer Is A Selling Writer

By Kathryn Lay

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Look out for lightning

By Kathryn Lay

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Since the tornado in Circleville, Texas, Wendy and her friends Jessica and Dennis have formed a club and named it "Wendy's Weather Warriors." Their first order of business is to inform their classm...

Sensing Their Prey

By Kathryn Lay, Christina Wald

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Time Twisters

By Kathryn Lay

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The Curse of Time Time Twisters

By Kathryn Lay

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Book 4

By Dave Bardin, Kathryn Lay

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Four Star Funerals

By Ann Barrington, David R. Davis, Patricia Holland, Kathryn Lay, Melissa Russell Deur

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Four Star Funerals

By Ann Barrington, David R. Davis, Patricia Holland, Kathryn Lay, Melissa Russell Deur

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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.