David Tosh Books

COMICS PACK PUNCH!Comic book values are soaring. Superman's debut, Action Comics #1, sold for $3.2 million. The first appearance of Batman in Detective Comics #27 fetched $1 million. Exceptional ex...

Rise of the Superheroes

By David Tosh

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They Could Be HeroesRise of the Superheroes--Greatest Silver Age Comic Books and Characters is a visual and entertaining adventure exploring one of the most popular and significant eras of comic bo...

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.

David Tosh Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?