Don Porter Books

Introducing photography
Introducing photography

By Don Porter

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CCNP
CCNP

By Don Porter, Kevin Hales, Todd Lammle

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CCNA
CCNA

By Don Porter, James Chellis, Todd Lammle

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Deadly Detail
Deadly Detail

By Don Porter

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Deadly Detail
Deadly Detail

By Don Porter

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All that Glisters
All that Glisters

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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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