David G. Hartwell Books

The Ascent of Wonder: The Evolution of Hard SF

By Kathryn Cramer, David G. Hartwell

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Age of wonders

By David G. Hartwell

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Age of Wonders is a fascinating tour of the origins, history, and culture of the science fiction world, written with insight and genuine affection for this wonder-filled literature, and addressed t...

Age of Wonders: Exploring The World of Science Fiction

By David G. Hartwell

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The Science Fiction Century, Volume One

By David G. Hartwell

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Year's Best SF 10

By Kathryn Cramer, David G. Hartwell

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Year's Best SF 11

By Kathryn Cramer, David G. Hartwell

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Year's Best SF 5

By David G. Hartwell

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Year's Best SF 6

By David G. Hartwell

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Year's Best SF

By David G. Hartwell

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Year's Best SF 2

By David G. Hartwell

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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.