Donald W. Wuerl Books

The Mass: The Glory, the Mystery, the Tradition

By Donald W. Wuerl

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The mass

By Donald W. Wuerl

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Guides readers through the different parts of the Catholic mass, from the entrance procession to the blessing and dismissal, and examines the history and spiritual significance of each element of t...

The church

By Donald W. Wuerl

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From the bestselling authors of The Mass, an insightful and practical guide that explores the architectural and spiritual components of the Catholic Church. Your local church is not only a physical...

The church

By Donald W. Wuerl

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A visit to the Vatican

By Donald W. Wuerl

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Traces the history of the papacy from the arrival of St. Peter in Rome and describes the buildings, gardens, art objects, and historical collections of the Vatican today.

A visit to the Vatican

By Donald W. Wuerl

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Traces the history of the papacy from the arrival of St. Peter in Rome and describes the buildings, gardens, art objects, and historical collections of the Vatican today.

The Catholic priesthood today

By Donald W. Wuerl

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The Church and Her Sacraments

By Donald W. Wuerl

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The Teaching of Christ

By Ronald Lawler, Donald W. Wuerl, Ronald David Lawler, Bishop Donald W. Wuerl, Thomas Comerford Lawler, Kenneth Nathaniel Taylor

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Deluxe Bible for Windows New American Bible

By Donald W. Wuerl

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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.