John J. Patrick Books

SQL fundamentals
SQL fundamentals

By John J. Patrick

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SQL Fundamentals
SQL Fundamentals

By John J. Patrick

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Understanding Democracy
Understanding Democracy

By John J. Patrick

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Founding the Republic
Founding the Republic

By John J. Patrick

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Civics for Americans
Civics for Americans

By John J. Patrick

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Civics for Americans
Civics for Americans

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Civics for Americans
Civics for Americans

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Founding the Republic
Founding the Republic

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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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