Lori Polydoros Books

Enemy invaders

By Lori Polydoros

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Windows to the past

By Lori Polydoros

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Kara thinks a vacation at a national monument will be boring. Then something strange happens to change her mind.

Crocodiles

By Lori Polydoros

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"Describes crocodiles, their physical features, how they hunt and kill, and their role in the ecosystem"--Provided by publisher.

Grizzly bears

By Lori Polydoros

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"Describes grizzly bears, their physical features, how they hunt and kill, and their role in the ecosystem"--Provided by publisher.

Lions

By Lori Polydoros

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"Describes lions, their physical features, how they hunt and kill, and their role in the ecosystem"--Provided by publisher.

Skateboarding greats

By Lori Polydoros

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"Lists and describes the top skateboarders of the past and today"--Provided by publisher.

Motocross greats

By Lori Polydoros

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"Lists and describes top motocross riders of the past and today"--Provided by publisher.

Transportation Zone

By Anne E. Hanson, Adele D. Richardson, Becky Olien, Lola M. Schaefer

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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.