Krahn Books

Atlas of sleep medicine
Atlas of sleep medicine

By Timothy I. Morgenthaler, Michael H. Silber, Lois E. Krahn

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"Written by experienced contributors from the renowned Mayo Clinic, Atlas of Sleep Medicine covers the history, humanities, and comparative biological aspects of sleep. This highly illustrated reso...

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Midnight magic.
Midnight magic.

By Betina M. Krahn

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The family Minus
The family Minus

By Fernando Krahn

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The Minus family leads an unusual life due to some of the inventions built by Mrs. Minus.

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Appetitive Disorders
Appetitive Disorders

By Krahn

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Fat Fighter Diet
Fat Fighter Diet

By Bruce Krahn

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The Great Ape
The Great Ape

By Fernando Krahn

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The Husband Test
The Husband Test

By

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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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