MARC GUGGENHEIM Books

Swashbucklers

By Marc Guggenheim

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Fragmentation

By Written By Marc Guggenheim. Art By Beni R. Lobel.

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With fragments of time and history invading our world and threatening human existence, one family discovers that their tragedy is at the center of it all.With a global scope and cinematic vision, F...

Too Dead to Die

By Howard Chaykin, Marc Guggenheim

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N STEPHEN KING

By MARC GUGGENHEIM, JOSE MARIA MENDEZ

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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.