Peter B. Gillis Books

Presents a graphic novel adaptation of the famous novel, in which a unicorn, alone in an enchanted wood, discovers she might be the last of her kind and sets out on a journey to find others like he...

Last Unicorn

By Peter S. Beagle, Peter B. Gillis, Renae DeLiz

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Shatter

By Peter Gillis, Peter B. Gillis, Michael Saenz

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Strikeforce

By Whilce Portacio, Brent Anderson, Mark Bagley, Peter B. Gillis, John Calimee

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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.