Douglas Kries Books

Gladly to Learn and Gladly to Teach

By Douglas Kries

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The Problem of Natural Law

By Douglas Kries

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At the center of contemporary interest in Late Antiquity is the dramatic spread and development of Christianity. This collection of sixteen essays explores early Christianity by examining its archi...

Piety and Humanity

By Douglas Kries

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Problem of Natural Law

By Douglas Kries

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Plato s Republic in the Islamic Context

By Joshua Parens, Alexander Orwin, Yehuda Halper, Douglas Kries, Josep Puig Montada

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Church and Her Scriptures

By Catherine Brown Tkacz, Douglas Kries

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Church and Her Scriptures

By Catherine Brown Tkacz, Douglas Kries

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Church and Her Scriptures

By Catherine Brown Tkacz, Douglas Kries

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Plato s Republic in the Islamic Context

By Joshua Parens, Alexander Orwin, Yehuda Halper, Douglas Kries, Josep Puig Montada

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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.