Kathryn Lay Books

Josh s Halloween pumpkin

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Josh learns a lesson about selfishness when he discovers an enormous pumpkin in his grandfather's pumpkin patch and his little sister goes missing.

Wendy s Weather Warriors

By ABDO Publishing Company Staff, Magic Wagon Staff

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Extreme Senses Animals with Unusual Senses for Hunting Prey

By Kathryn Lay, Christina Wald

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Hearing Their Prey Animals with an Amazing Sense of Hearing

By Kathryn Lay, Christina Wald

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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.