George R.R. Martin Books

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Wild Cards
Wild Cards

By George R. R. Martin

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El caballero de los Siete Reinos Knight of the Seven Kingdoms
El caballero de los Siete Reinos Knight of the Seven Kingdoms

By George R.R. Martin

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Pronto una serie de MAXCien años antes de Juego de tronos… llega por fin la precuela de la aclamada Canción de hielo y fuego... Doscientos años después de la Conq...

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Choque de reyes A Clash of Kings
Choque de reyes A Clash of Kings

By George R.R. Martin

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Cuando los reyes están en guerra, toda la tierra tiembla… “Ahora hay más reyes en el reino que ratas en un castillo”, afirma uno de los personajes de Choque de...

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Tormenta de espadas A Storm of Swords
Tormenta de espadas A Storm of Swords

By George R.R. Martin

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Canción de hielo y fuego III“La espada llameante dejó a su paso largas estelas de fuego… El acero cantó contra el acero”. Arrasados por la guerra, los Siete...

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A Song of Ice and Fire 2012 Calendar
A Song of Ice and Fire 2014 Calendar
A Song of Ice and Fire 2011 Calendar
Game of Thrones 27-Copy Floor Display (EXP)
George R. R. Martin Presents Wild Cards: Sleeper Straddle
George R. R. Martin Presents Wild Cards: Sleeper Straddle

By Christopher Rowe, George R. R. Martin, Carrie Vaughn, Cherie Priest, Melinda M. Snodgrass

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An original collection of interwoven short stories set in the Wild Cards universe, where an alien virus mutates some and grants superpowers to others, created by the #1 New York Times bestsell...

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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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