James J. O Donnell Books

Pagans
Pagans

By James J. O Donnell

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Gold, the noble metal
Gold, the noble metal

By James J. O Donnell

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Discusses the properties of gold, its uses and history, and how to invest in and prospect for gold.

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Earthly matters, a study of our planet
Earthly matters, a study of our planet

By James J. O Donnell

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This introduction to the planet Earth discusses such topics as its formation, orbit, surface, and neighbors in space.

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Avatars of the Word
Avatars of the Word

By James J. O Donnell

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Statistics
Statistics

By James J. O Donnell

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Sons of Valor Parents of Faith
La Ruina del Imperio Romano
Augustine
Augustine

By James J. O Donnell

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Augustine
Augustine

By James J. O Donnell

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Augustine
Augustine

By James J. O Donnell

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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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