John Jansen Books

Class act
Class act

By John Jansen

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Playing possum
Playing possum

By John Jansen

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The love diet strategy
The love diet strategy

By John Jansen

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Grin and bear it
Grin and bear it

By Irene Shere, Thomas Mase, Diane L. Burns, John Jansen

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Presents a variety of jokes about animals.

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Real Classy
Real Classy

By Ann Walton, Rick Walton, John Jansen

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A collection of jokes about school and education.

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Real Classy
Real Classy

By Ann Walton, Rick Walton, John Jansen

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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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