Roger Bruns Books

Icons of Latino America
Icons of Latino America

By Roger Bruns

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John Wesley Powell
John Wesley Powell

By Roger Bruns

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A biography of the geologist who first explored the Colorado River and the Grand Canyon.

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Negro Leagues Baseball
Negro Leagues Baseball

By Roger Bruns

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Encyclopedia of Cesar Chavez
Encyclopedia of Cesar Chavez

By Roger Bruns

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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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