Michael Fellman Books

More than any other Union general, Sherman was capable of conducting mass psychological warfare in order to break the heart of the Confederacy. Sherman succeeded in large measure because he could p...

The Making of Robert E. Lee

By Michael Fellman

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"The Making of Robert E. Lee reveals the flesh-and-blood Lee - not to expose him but to better understand a man who was perhaps the most fervent practitioner of the Southern code of conduct, behind...

Citizen Sherman

By Michael Fellman

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Antislavery Reconsidered

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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.