Paul A. Johnsgard Books

Teton wildlife
Teton wildlife

By Paul A. Johnsgard

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North American owls
North American owls

By Paul A. Johnsgard

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Prairie children, mountain dreams
Prairie children, mountain dreams

By Paul A. Johnsgard

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When a stegosaurus hatches from the "rock" that he brought back from Yellowstone Park, Jerry makes a bicycle trip back to the park to return the dinosaur to its volcanic home and meets a young Chey...

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Those of the gray wind
Those of the gray wind

By Paul A. Johnsgard

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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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