John Shelley Books

Computers and Commonsense
Computers and Commonsense

By Roger Hunt

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The rimlanders.
The rimlanders.

By John Lascola Shelley

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Computer Studies: A First Course
Computer Studies: A First Course

By

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Gun for Billy Hardin
Key Concepts 1
Key Concepts 2
Bella Baxter and the lighthouse mystery
Bella Baxter and the lighthouse mystery

By Sarah Hines Stephens, Jane B. Mason

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When someone or something is visiting the old abandoned lighthouse near Sea Inn, Bella and her friends are determined to figure out what is going on.

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Inn trouble
Inn trouble

By Jane B. Mason

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Bella helps her parents turn a dilapidated old house into a beautiful bed and breakfast.

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Crinkle Crackle CRACK
Crinkle Crackle CRACK

By Marion Dane Bauer

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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.

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