Randy Leffingwell Books

The Corvette
The Corvette

By Randy Leffingwell

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John Deere
John Deere

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The Porsche 911
The Porsche 911

By Randy Leffingwell

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Corvette
Corvette

By Randy Leffingwell

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Classic Farm Tractors
Classic Farm Tractors

By Randy Leffingwell

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Mustang Classics
Mustang Classics

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Related Articles from our Blog

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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