Joann Deak Books

Girls Will Be Girls
Girls Will Be Girls

By JoAnn Deak

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GIRLS WILL BE GIRLS
GIRLS WILL BE GIRLS

By Teresa Barker, JoAnn Deak

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How Girls Thrive
How Girls Thrive

By Joann Deak

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The owner s manual for driving your adolescent brain
The owner s manual for driving your adolescent brain

By JoAnn M. Deak

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Think you know everything about your brain? Think again! In this exciting follow-up to Your Fantastic Elastic Brain, you?ll get the goods on glia and the news about neurons, presented in a fun and...

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Senin Muhtesem Esnek Beynin
Senin Muhtesem Esnek Beynin

By Joann Deak

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Tu fantastico y elastico cerebro

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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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