Jim Valentino Books

Shadowhawk Resurrection

By Jim Valentino, Tone Rodriguez, Steve Niles, Dan Wickline

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Marvel Platinum

By Jim Valentino

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Guardians Of The Galaxy Epic Collection: Homecoming

By Jim Valentino

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Comic industrty legend Jim Valentino continues his fascinating look at the 31st century Marvel Universe with the original incarnation of the Guardians of the Galaxy!The original Guardians of the Ga...

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.