Jon Sweeney Books

Almost Catholic: An Appreciation Of The History, Practice, And Mystery Of Ancient Faith

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The Language And The Spirit -- Forget What You Thought You Knew -- Catholic -- Forget About Conversion -- Doubters And Believers, Atheists And Agnostics -- Steps To Becoming A Truly Catholic Christ...

Peter Faber

By Jon M. Sweeney

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Verily, Verily

By Jon M. Sweeney, Jon Sweeney

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As historian Tony Lane once noted, without the King James Version of the Bible, it can be speculated that, there would be no Paradise Lost … no Pilgrim’s Progress … no Negro spirituals … no Gettysb...

The Pope Who Quit

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The riveting story of Pope St. Celestine V, the pope who retired from the papacy.At the close of the tumultuous Middle Ages, there lived a man who seemed destined from birth to save the world. His...

Almost Catholic

By Jon M. Sweeney, Jon Sweeney

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Jon Sweeney, a self-described “evolved Protestant” and noted religious writer, has long been fascinated by the Catholic Church. However, it wasn't until he was a young missionary in the Philippines...

Praying with Our Hands

By Jon Sweeney

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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.