Mark Demel Books

The Void
The Void

By Mark Demel

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Mixed Signals
Mixed Signals

By Mark Demel

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In My Day Arts
In My Day Arts

By Mark Demel

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In My Day Evangelism
In My Day Evangelism

By Mark Demel

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In My Day Community
In My Day Community

By Mark Demel

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In My Day Leadership
In My Day Leadership

By Mark Demel

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Attractive Deal
Attractive Deal

By Mark Demel

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Investment at Risk
Investment at Risk

By Mark Demel

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Related Articles from our Blog

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.

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