Jana Costas Books

Secrecy at Work
Secrecy at Work

By Christopher Grey, Jana Costas

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Secrecy at Work
Secrecy at Work

By Christopher Grey, Jana Costas

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Secrecy at Work
Secrecy at Work

By Christopher Grey, Jana Costas

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Dramas of Dignity
Dramas of Dignity

By Jana Costas

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Dramas of Dignity
Dramas of Dignity

By Jana Costas

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Dramas of Dignity
Dramas of Dignity

By Jana Costas

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Dramas of Dignity
Dramas of Dignity

By Jana Costas

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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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