Mario Gully Books

La isla del tesoro

By Roy . . . Et Al. Thomas, Mario Gully

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Koni Waves

By Sean O Reilly

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Ant Volume 1

By Marc Hammond, Mario Gully

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Retells, in comic book format, Robert Louis Stevenson's tale of sixteen-year-old David Balfour who, after being kidnapped by his villainous uncle, escapes and becomes involved in the struggle of th...

Army of Darkness

By Scott Cohn, Mario Gully, Pablo Marcos, Dave Simons

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Totem

By Jeffrey Kaufman, Stacie Ponder, Mario Gully, Enrique Savory

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Marvel Vault of Heroes Hulk

By Scott Steve, Mario Gully, Juan Santacruz, David Nakayama, Paul Benjamin

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I Go to Sea

By Mario Gully, Roy Thomas

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End of the Quest

By Mario Gully, Roy Thomas

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Kidnapped

By Mario Gully, Roy Thomas

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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.