R. Michael Allen Books

The Christ s faith

By R. Michael Allen

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Reformed theology

By R. Michael Allen

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Reformed theology

By R. Michael Allen

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Theological commentary

By R. Michael Allen

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Justification and the Gospel

By R. Michael Allen

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"Seeking to move beyond current heated debates on justification, this accessible introduction offers a fresh, alternative approach to a central theological topic. Michael Allen locates justificatio...

Reformed Catholicity

By R. Michael Allen, Scott R. Swain

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Christ s Faith

By Michael Allen

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Reformed Theology

By R. Michael Allen

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Karl Barth s Church Dogmatics

By Michael Allen

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Reformed Catholicity

By R. Michael Allen, Scott R. Swain

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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.