Bill Topp Books

Working The Lead
Working The Lead

By Keith Zirbel, Bill Topp

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Working The Trail
Working The Trail

By Keith Zirbel, Bill Topp

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Rules for Refs
Rules for Refs

By Bill Topp

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Working the Trail
Working the Trail

By Bill Topp

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Working the Center
Working the Center

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Rules for Refs
Rules for Refs

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Rules for Refs
Rules for Refs

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Basketball Officials Guidebook
Basketball Officials Guidebook

By Bill Topp

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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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