Stephen Antczak Books

Cosmetics Unmasked: Your Family Guide to Safe Cosmetics and Allergy-freeToiletries

By Gina Antczak, Dr. Stephen Antczak

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Cosmetics Unmasked: Your Family Guide to Safe Cosmetics and Toiletries

By Stephen Antczak, Gina Mae Antczak

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Zombiesque

By Stephen L. Antczak

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From a tropical resort where visitors can become temporary zombies, to a newly-made zombie determined to protect those he loves, to a cheerleader who won't let death kick her off the team, to a zom...

Z Files A Parody of the X Files

By Stephen Antczak

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2013 Investment Themes

By Stephen Antczak, Jeremy Hale, Willem Buiter, Citi GPS, Robert Buckland

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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.