David Sieg Books

Home Energy Made Easy
Home Energy Made Easy

By David N Sieg

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Mia s Journey
Mia s Journey

By David Sieg

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Algae for Ethanol
Algae for Ethanol

By David Sieg

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Making Algae Biofuels
Making Algae Biofuels

By David Sieg

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Building Open Ponds
Building Open Ponds

By David Sieg

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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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