William Fortenbaugh Books

"Volume 16 of Transaction's acclaimed Rutgers University Studies in Classical Humanities series, continues the work of Project Theophrastus on the School of Aristotle. The subject of this volume is...

Aristo of Ceos

By William Fortenbaugh

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"Volume 13 in the RUSCH series continues work already begun on the School of Aristotle. Volume 9 featured Demetrius of Phalerum, Volume 10, Dicaearchus of Messana, Volume 11, Eudemus of Rhodes, and...

Quellen zur Ethik Theophrasts

By William W. Fortenbaugh

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Cicero s Knowledge of the Peripatos

By William Fortenbaugh

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Enduring Trauma Through the Life Cycle

By Arturo Varchevker, Eileen McGinley

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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.