Renato Guedes Books

Secret Avengers by Rick Remender Volume 2

By Renato Guedes, Matteo Scalera, Rick Remender

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Wolverine by Jason Aaron The Complete Collection Volume 2

By Jason Aaron

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Wolverine by Jason Aaron The Complete Collection Volume 4

By Jason Aaron

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Superman

By Geoff Johns, Kurt Busiek

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"The event that the New 52 has been building towards since the beginning! #1 New York Times best-selling writer Geoff Johns (Green Lantern, Batman: Earth One) brings together almost two years of pl...

Justice League

By Geoff Johns, Jeff Lemire, Ray Fawkes

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Wonder Woman

By Renato Guedes, Jodi Wynne, Liam Sharp, Greg Rucka, Romulo Fajardo, Bilquis Evely, Laura J. Martin

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"They say the truth will set you free. That's what Princess Diana-the hero known to the world as Wonder Woman-believed. But she discovered a far darker truth, learning that her entire life and hist...

Stargate SG 1

By Renato Guedes, James Anthony, Jorge Correa

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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.