Steve Saffel Books

Official Handbook of the Marvel Universe

By Peter Sanderson, Various Various, Mark Gruenwald, Steve Saffel

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Joe Simon: My Life in Comics

By Joe Simon

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"Gripping from the first page... If you love comic books, history, or just love a story of a real self-made man, you must read this book." - Shadowlocked"A true visionary, Simon's book is...

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.