Patrick Jordan Books

Commonweal Confronts the Century

By Editors Of Commonweal Mag

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Dorothy Day

By Dorothy Day

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"Gathered here for the first time are Day's complete Commonweal pieces, including articles, reviews, and published letters-to-the-editor. They offer the reader not only an overview of Day's fascina...

Dorothy Day

By Patrick Jordan

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By any measure, Dorothy Day lived a fascinating life. She was a journalist, activist, single mother, convert, Catholic laywoman, and co-founder of the Catholic Worker Movement. A lifelong radical w...

Challenging 30 Minute Crosswords

By Frank Longo, Bob Klahn, Harvey Estes, Mel Rosen, Rich Norris, Dave Tuller, Martin Ashwood Smith, Manny Nosowsky, Patrick Jordan, Raymond Hamel

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Dorothy Day

By Patrick Jordan

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Dorothy Day

By Patrick Jordan

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Hold nothing back

By Dorothy Day

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Hold nothing back

By Dorothy Day

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Patricks Puzzle Pandemonium A Cavalcade Of Crossword Craziness

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Crafty Crosswords

By Patrick Jordan

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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.