Roger Elwood Books

Androids, time machines, and blue giraffes

By Roger Elwood

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The Gifts of Asti, and other stories of science fiction

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Androids, time machines, and blue giraffes

By Roger Elwood

Average: 0.00, 0 Ratings

The Gifts of Asti, and other stories of science fiction

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Future City

By Roger Elwood Editor

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On holy ground

By Roger Elwood

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The mysterious realm of spiritual warfare plays a vivid part when a madman enters a church, opens fire on hundreds of young people, killing seven and wounding others.

Darien s Angelwalk for Children

By Roger Elwood

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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.