Peter Trumbull Books

City Grammar Case
City Grammar Case

By Peter Trumbull

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The fun park is open!
The fun park is open!

By Kathryn Wheeler

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The big town garage
The big town garage

By Peter Trumbull

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The Wigner Cupola Case
The Wigner Cupola Case

By Peter Trumbull

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The City Grammar Case
The City Grammar Case

By Peter Trumbull

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Whose hat is that?
Whose hat is that?

By Peter Trumbull

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Gunbucks
Gunbucks

By Peter Trumbull

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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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