Keith Champagne Books

JSA

By Keith Champagne, Geoff Johns

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DC

By John Ostrander, Keith Champagne

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Countdown

By Keith Champagne

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The mighty

By Peter Tomasi

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"America's only Super Hero, Alpha One, is introduced in ... the new series The Mighty. But when murder strikes at the top of Alpha's crimefighting organization, the life of one of its members will...

"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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Superman Wonder Woman Vol. 2

By Tony S. Daniel, Ed Benes, Charles Soule

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Superman Wonder Woman Vol. 2

By Charles Soule

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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.