Rolf Heimann Books

Amazing Mazes
Amazing Mazes

By Rolf Heimann

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Awesome alphamaze
Awesome alphamaze

By Rolf Heimann

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Ultimaze.
Ultimaze.

By Rolf Heimann

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For Eagle Eyes Only Hippo Puzzles
For Eagle Eyes Only Hippo Puzzles

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Awesome Alphamaze
Awesome Alphamaze

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Amazing Mazes 3
Amazing Mazes 3

By Rolf Heimann

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Picture Puzzle Mysteries
Picture Puzzle Mysteries

By Rolf Heimann

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Tom Start Up
Tom Start Up

By Rolf Heimann

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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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