Bruno Steimer Books

Dictionary of Popes and the Papacy

By Bruno Steimer, Michael G. Parker, Brian McNeil

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The Dictionary of Reformation Encyclopedia of Theology and Church

By Bruno Steimer

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Dictionary of Saints and the Sainthood.

By Bruno Steimer

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The third installment of the Encyclopedia of Theology and Church offers a wealth of information into the question of saints and sainthood. Part one covers the lives and legacies of hundreds of peop...

Vertex traditionis

By Bruno Steimer

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Lexikon der Papste und des Papsttums.

By Bruno Steimer

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Lexikon der Kirchengeschichte. Lexikon fur Theologie und Kirche kompakt.

By Konrad Baumgartner, Bruno Steimer, Horst Burkle, Walter Kasper

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Egyhaztorteneti lexikon

By Bruno Steimer

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Vertex Traditionis

By Bruno Steimer

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Vertex Traditionis

By Bruno Steimer

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Lexikon der Reformationszeit. Lexikon fur Theologie und Kirche kompakt.

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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.