Troy McMillan Books

CISSP cert guide
CISSP cert guide

By Robin M. Abernathy

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Cisco networking essentials
Cisco networking essentials

By Troy McMillan

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Cisco networking essentials
Cisco networking essentials

By Troy McMillan

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Cisco networking essentials
Cisco networking essentials

By Troy McMillan

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Cisco networking essentials
Cisco networking essentials

By Troy McMillan

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CompTIA A
CompTIA A

By Troy McMillan, Emmett Dulaney

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Comptia A Complete Review Guide
Comptia A Complete Review Guide

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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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