Mark Blum Books

Galapagos in 3 D
Galapagos in 3 D

By Mark Blum

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Big trucks and diggers in 3-D
Big trucks and diggers in 3-D

By Mark Blum

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Amphibians Reptiles in 3 D
Amphibians Reptiles in 3 D

By Mark Blum

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Bugs in 3-D
Bugs in 3-D

By Mark Blum

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Beneath the sea in 3-D
Beneath the sea in 3-D

By Mark Blum

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Coral Reef Eye to Eye
Coral Reef Eye to Eye

By Mark Blum

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Related Articles from our Blog

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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