Karen O Callaghan Books

Words
Words

By Karen O Callaghan

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Our Amazing World
Our Amazing World

By Karen O Callaghan

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Growing up
Growing up

By Karen O Callaghan

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Nature s builders
Nature s builders

By Karen O Callaghan

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Living together
Living together

By Karen O Callaghan

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Animal life
Animal life

By Karen O Callaghan

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Let's learn our ABC.
Let's learn our ABC.

By Karen O Callaghan

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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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