Coffey David Books

Did you receive the Holy Spirit when you believed?

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"Beautiful and brave, outlandish and unconventional, Princess Agnes Salm-Salm played a sometimes controversial, often conspicuous, and always colorful role in three of the nineteenth century's majo...

In Harm s Way

By Gene Allen Smith, Kyle Longley, Coffey David

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Deus Trinitas

By Coffey David

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Family Pets

By Coffey David

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Deus Trinitas

By Coffey David

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Encyclopedia of North American Indian Wars 1607 1890 a Political Social and Military History

By Roberta Wiener, Jim Piecuch, Spencer C. Tucker, James Arnold, Coffey David

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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.