John Sack Books

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By John Sack

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Company C: The real war in Iraq
Company C: The real war in Iraq

By John Sack

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Call it the Television War. For six weeks in 1991, images of the war in Iraq danced on America's TV sets, and we were led to believe that the GIs fought it by sitting at computer monitors and firin...

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The Franciscan conspiracy
The Franciscan conspiracy

By John R. Sack

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Yearning for the Father
Yearning for the Father

By John R. Sack

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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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