George O Connor Books

Poseidon Yeri Sarsan Tanri

By George O Connor

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If I had a triceratops

By George O Connor

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With deft visual humor, a New York Times best-selling author/illustrator imagines how awesome it would be to have a pet triceratops living in the backyard.

Asgardians

By George O Connor

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Asgardians

By George O Connor

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Asgardians

By George O Connor

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Asgardians

By George O Connor

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Unrig

By George O Connor, Dan G. Newman

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If I Had a Velociraptor

By George O Connor

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Captain Awesome and the New Kid

By George O Connor, ABDO Publishing Company Staff, Stan Kirby

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Mission

By George O Connor, Deborah Abela

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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.