David S. Goyer Books

Heaven's fall

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Humanity is facing its greatest challenge. The alien Reivers have conquered our world. 20 years earlier, extraterrestrials came to Earth, and abducted humans, stranding them on a spacecraft named K...

Heaven s Shadow

By David S. Goyer, Michael Cassutt

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Heaven s war

By David S. Goyer

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Heaven s War

By David S. Goyer, Michael Cassutt

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JSA

By David S. Goyer, Stephen Sadowski, Geoff Johns

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JSA

By David S. Goyer, Geoff Johns, Leonard Kirk

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Dark Knight Trilogy

By Christopher Nolan, David S. Goyer, Jonathan Nolan

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Dark Knight Trilogy

By Christopher Nolan, David S. Goyer, Jonathan Nolan

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Justice Society of America

By David S. Goyer, Geoff Johns

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JSA Jsa

By David S. Goyer, Keith Champagne, Geoff Johns, Leonard Kirk

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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.