Stephan M. Mardyks Books

Trap tales
Trap tales

By David M. R. Covey

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Quantum negotiation
Quantum negotiation

By Karen S. Walch

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"The Quantum Negotiation preparation model explores who we are as negotiators in the context of our social conditioning. Our model explores all of our human dimensions in the cognitive, psychologic...

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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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