Stjepan Sejic Books

Rat Queens 2. Los largos tentaculos de N Rygoth

By Roc Upchurch, Stjepan Sejic, Kurtis J. Wiebe

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SUNSTONE

By EDUARDO LOPEZ LAFUENTE

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SUNSTONE

By EDUARDO LOPEZ LAFUENTE

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Fight for the Multiverse

By Larry Stroman, Dan Abnett, Stjepan Sejic, Tom Raney, Gene Ha

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Based on the hit videogame INFINITE CRISIS, the cosmos spanning series is now available in print! In an alternate earth, Atomic Two-Face has stolen the Eternal Key, an artifact that could give him...

Sunstone

By Stjepan Sejic

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Sunstone Vol. 5

By Stjepan Sejic

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Sunstone Book Two

By Stjepan Sejic

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Sunstone 18 Month Calendar

By Stjepan Sejic

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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.