Christopher Sebela Books

Dead Letters Vol. 2

By Christopher Sebela

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Welcome back

By Christopher Sebela

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Eisner-Award nominated writer Christopher Sebela (Dead Letters, High Crimes) and artists Jonathan Brandon Sawyer (Critical Hit) and Claire Roe bring you a tale of reincarnated assassins who are for...

Escape from New York Vol. 4

By Christopher Sebela

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Welcome back

By Christopher Sebela

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High crimes

By Christopher Sebela

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Disgraced Olympic snowboarder Zan Jensen runs a sideline business as a high-altitude grave robber. When a body is found at the summit of Everest with a treasure of state secrets under its skin, Zan...

Alien vs. Predator

By Christopher Sebela

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As the mercenary crew of the Perses leaves the horror of LV-223 behind them, one passenger reveals a terrible new danger and the crew soon find themselves in a deadly struggle between predator and...

Heartthrob Vol. 1

By Christoper Sebela

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Heartthrob Vol. 2

By Christopher Sebela

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Eden

By Marc Laming, Abel Ferry, Lee Loughridge, Alain Bismut, Christopher Sebela

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Shadowman

By Justin Jordan

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The secret origin of all Shadowmen, past and present... Long ago, in the antebellum South, Master Darque's evil spawned the one thing that could stop him: the Shadowman. Now, for the very first tim...

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.