Kenji Oikawa Books

Circle triangle elephant
Circle triangle elephant

By Kenji Oikawa

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"Circle, triangle ... elephant!? A big book of shapes, with a bit of silliness mixed in"--

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Ikko sanko
Ikko sanko

By Kenji Oikawa

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Busan no bu
Busan no bu

By Kenji Oikawa

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Peng peng xi peng peng
Peng peng xi peng peng

By Kenji Oikawa

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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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