Bruce Frohnen Books

Rethinking Rights

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As reports of genocide, terrorism, and political violence fill today’s newscasts, more attention has been given to issues of human rights—but all too often the sound bites seem overly simplistic. M...

Rethinking Rights

By Kenneth L. Grasso, Bruce P. Frohnen

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The American nation

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The American nation

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Democracy in America

By Bruce Frohnen, Bruce Erohnen, Alexis De Tocqueville

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American Republic

By Bruce Frohnen

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American Conservatism

By Jeremy Beer, Nelson O. Jeffrey, Bruce Frohnen

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American Conservatism

By Jeremy Beer, Nelson O. Jeffrey, Bruce Frohnen

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American Conservatism

By Jeremy Beer, Nelson O. Jeffrey, Bruce Frohnen

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Defending the Republic

By Bruce Frohnen, Kenneth L. Grasso

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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.