Jeff Erno Books

Dumb Jock
Dumb Jock

By Jeff Erno, Paul Richmond

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Another Dumb Jock
Another Dumb Jock

By Jeff Erno

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Another Dumb Jock
Another Dumb Jock

By Jeff Erno, Paul Richmond

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Appearances Matter
Appearances Matter

By Jeff Erno

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Appearances Matter
Appearances Matter

By Jeff Erno, Paul Richmond

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Bullied Library Edition
Bullied Library Edition

By Jeff Erno

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Dumb Jock
Dumb Jock

By Jeff Erno

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Dumb Jock
Dumb Jock

By Jeff Erno

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Left Hand Path
Left Hand Path

By Jeff Erno

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Two dumb jocks
Two dumb jocks

By Jeff Erno

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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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