Adrian D Hage Books

The Omega Scroll

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"A Dead Sea scroll has lain undisturbed in a cave near Qumran for nearly two thousand years. The Omega Scroll contains both a terrible warning for civilization and the coded number the Vatican fear...

Maya Codex

By Jim Daly, Adrian D Hage

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Omega Scroll The

By Jim Daly, Adrian D Hage

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The Alexandria Connection

By Adrian D Hage, Sean Mangan

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The Omega Scroll

By Adrian D Hage

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The Beijing Conspiracy

By Adrian D Hage

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La Menace Omega

By Adrian D Hage

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Maya Codex

By Adrian D Hage

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Omega Scroll

By Adrian D Hage

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Beijing Conspiracy

By Adrian D Hage

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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.