Jim Ollhoff Books

Great Explorers
Great Explorers

By Jim Ollhoff

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Neil Armstrong
Neil Armstrong

By Jim Ollhoff

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Introduces readers to Neil Armstrong, the great explorer who was the first person to walk on the moon.

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Christopher Columbus
Christopher Columbus

By Jim Ollhoff

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Ferdinand Magellan
Ferdinand Magellan

By Jim Ollhoff

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A biography of the Portuguese explorer Ferdinand Magellan.

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Myths and controversies
Myths and controversies

By Jim Ollhoff

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Examines the myths that exist about climate change.

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Filling the family tree
Filling the family tree

By Jim Ollhoff

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Ancient America
Ancient America

By Jim Ollhoff

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Getting along
Getting along

By Jim Ollhoff

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Werewolves World of Horror
Werewolves World of Horror

By Jim Ollhoff

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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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