Jon Holdredge Books

Exiles Vol. 4: Legacy

By Jon Holdredge, Jim Calafiore, Judd Winick

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They are the Exiles, reality hopping nomads forced to repair the broken chain of time. In each new universe they travel to the team must complete a mission before moving on. Their only guide is the...

Cable Classic

By Louise Simonson, John Romita Jr., Marvel Comics, Fabian Nicieza, Rob Liefeld

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Cable Classic

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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.