John MacMillan Books

Ten Toughest Sales Calls
Ten Toughest Sales Calls

By John MacMillan

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Boundaries in Question
Boundaries in Question

By John MacMillan

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Boundaries in Question
Boundaries in Question

By John MacMillan

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Customers Still Count
Customers Still Count

By John MacMillan

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On liberal peace
On liberal peace

By John MacMillan

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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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