David A. Lopez Books

Separatist Christianity: Spirit And Matter In The Early Church Fathers

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"Christians living in the Roman empire during the first four centuries after Christ struggled with the extent to which they should recognize and accept imperial authority. In the fifth century AD,...

The Latino Experience In Omaha: A Visual Essay

By Hans Mol, David A. Lopez, D. A. Lopez, Eugene G. D'Aquili

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This Commentary Attempts To Tie The Interpretation Closely To The Original Essay Rather Than To The Political Charged Reactions To That Essay. Rather Than A Simplistic Projection Of Future Populati...

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.