John Zmirak Books

The Bad Catholic s Guide To Wine Whiskey And Song

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This sequel to the highly-praised Bad Catholic's Guide to Good Living allows you to view Catholic life from a unique perspective. Starting with the wines, beers, and liquors made around the world b...

The Grand Inquisitor

By John Zmirak

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This updating of Dostoevsky’s fable will challenge believers of every hue, and fascinate students of religion, philosophy and literature. The first graphic novel written in Miltonic blank verse, is...

The Politically Incorrect Guide to Catholicism Lib E

By Patrick Girard Lawlor, Dr John Zmirak

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The Politically Incorrect Guide to Catholicism

By John Zmirak

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Choosing the right college 2012 13

By John Zmirak

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Evaluates the academic life, political atmosphere, and social conditions at more than one hundred of the top colleges and universities in the United States.

Choosing the right college 2014 15

By John Zmirak

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Evaluates the academic life, political atmosphere, and social conditions at more than one hundred of the top colleges and universities in the United States.

The Politically Incorrect Guide to Immigration

By John Zmirak

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Wilhelm Ropke

By John Zmirak

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Wilhelm Ropke

By John Zmirak

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All American Colleges

By John Zmirak

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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.