Jeff Gothelf Books

Lean UX
Lean UX

By Jeff Gothelf

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Sense respond
Sense respond

By Jeff Gothelf

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We're in the midst of a revolution. Quantum leaps in technology are enabling organizations to observe and measure people's behavior in real time, communicate internally at extraordinary speed, and...

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Lean UX
Lean UX

By Josh Seiden, Jeff Gothelf

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Lean UX
Lean UX

By Josh Seiden, Jeff Gothelf

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Lean UX
Lean UX

By Josh Seiden, Jeff Gothelf

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Lean UX
Lean UX

By Josh Seiden, Jeff Gothelf

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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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