Geoff Ryman Books

Lars Arrhenius A Z

By Geoff Ryman, Andrew Wilson

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Lightspeed Magazine June 2015

By Chaz Brenchley, Geoff Ryman, Seanan McGuire, Amal El Mohtar, John Chu, Lightspeed Magazine

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Bitter Waters

By Chaz Brenchley, Geoff Ryman

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"To defeat her enemies she must make them immortal. Only men are allowed into the wells of vision. But Cara's mother defies this edict and is killed, but not before returning with a vision of terri...

Moloch

By Geoff Ryman

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253. Der U Bahn Roman.

By Geoff Ryman

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Aire Air Solaris

By Geoff Ryman

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253 Premio Philip K. Dick Spanish Edition

By Geoff Ryman

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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.