Richard M. Gilbert Books

Caffeine
Caffeine

By Richard M. Gilbert

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Examines the nature and effects, both harmful and beneficial, of the use and abuse of this popular stimulant.

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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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