Graham Duke Books

Air traffic control
Air traffic control

By G. R. Duke

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Air traffic control
Air traffic control

By G. R. Duke

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Air Band Radio Guide
Air Band Radio Guide

By G. R. Duke, Graham Duke

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Air Traffic Control
Air Traffic Control

By Graham Duke

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Air band radio guide
Air band radio guide

By G. R. Duke

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ABC AIR TRAFFIC CONTROL
ABC AIR TRAFFIC CONTROL

By Graham Duke

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ABC Air Band Radio Guide
ABC Air Band Radio Guide

By Graham Duke

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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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