Robert Obojski Books

Boxing memorabilia
Boxing memorabilia

By Bill Cayton

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Ships & explorers on coins.
Ships & explorers on coins.

By Robert Obojski

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Traces the history of ships and explorers through their representation on the coins of various countries.

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Baseball bloopers & other curious incidents
Baseball bloopers & other curious incidents

By Robert Obojski

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Presents true stories of events on and off the baseball field, with sidelights about players, managers, rules, and unusual customs connected with the sport.

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Poland in Pictures
Poland in Pictures

By Robert Obojski

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Describes the geography, history, government, economy, culture, and people of the seventh largest country in Europe.

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Poland in pictures
Poland in pictures

By Robert Obojski

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Describes the geography, history, government, economy, and people of the seventh largest country in Europe.

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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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