Theodore A. Bergren Books

Sixth Ezra

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Sixth Ezra is a brief, oracular treatise included in the biblical Apocrypha as the final two chapters (15-16) of 4 Ezra or 2 Esdras. Cast as the words of God mediated through an unnamed prophet, th...

Education of the Practical Theologian

By David Polk, Don S. Browning, Theodore A. Bergren

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A Latin-Greek index of the Vulgate New Testament

By Theodore A. Bergren

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Sixth Ezra

By Theodore A. Bergren

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Sixth Ezra

By Theodore A. Bergren

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1 Clement

By Theodore A. Bergren

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1 Clement

By Theodore A. Bergren

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Sixth Ezra

By Theodore A. Bergren

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Latin Greek Index of the Vulgate New Testament

By Theodore A. Bergren

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Latin Greek Index of the Vulgate New Testament and the Apostolic Fathers

By Theodore A. Bergren

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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.