Leffler Books

Using INFORMIX-SQL
Using INFORMIX-SQL

By Jonathan Leffler

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In Uncertain Times
In Uncertain Times

By Legro, Leffler

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Destroyer
Destroyer

By Leffler

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Fantastic Mr. Fox
Fantastic Mr. Fox

By Leffler

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Accountant
Accountant

By Leffler

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Love Music
Love Music

By Mick Leffler

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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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