Powell John Books

Why you love music
Why you love music

By Powell John

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With his conversational style, humor, and endless knowledge, scientist and musician John Powell explores a fascinating study of how our brains respond to the joys of music.

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Immigration
Immigration

By Powell John

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Provides an overview of the issues associated with immigration to the United States, with a glossary of terms and a fully annotated bibliography.

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CO2 laser cutting
CO2 laser cutting

By Powell John

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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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