Stefan Petrucha Books

Moonstone Noir

By Jay Faerber, Eric Yonge

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Walt Disney's Uncle Scrooge.

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Five new adventures of Uncle Scrooge McDuck and his nephews.

Walt Disney's Uncle Scrooge.

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Six new adventures of Uncle Scrooge McDuck and his nephews.

Mickey s inferno

By Guido Martina

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Imagine if you will, a satirical retelling of Dante Aligheri's Inferno starring Mickey Mouse. This is the very first of the world-famouse, er, famous Great Parodies featuring classic Disney stars i...

Hotel Transylvania Graphic Novel Vol. 4

By Allen Gladfelter, Zazo, Stefan Petrucha

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Hotel Transylvania Boxed Set 1 3

By Stefan Petrucha

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Hotel Transylvania 3 in 1 1

By Stefan Petrucha

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Writ in Stone

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Nancy Drew 7 The Charmed Bracelet Nancy Drew Graphic Novels Girl Detective

By Stefan Petrucha

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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.