David Garrison Books

Garrison reveals that the first Muslim movement to Christ did not occur until the 19th century, more than 1000 years after Muhammad's message first echoed from the minarets of Medina. In the first...

A wind in the house of Islam

By V. David Garrison

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Garrison reveals that the first Muslim movement to Christ did not occur until the 19th century, more than 1000 years after Muhammad's message first echoed from the minarets of Medina. In the first...

Blue Oboe

By David Garrison

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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.