James R. Skelly Books

Eating places
Eating places

By Herbert S. Zim

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An introduction to the ways food is bought, stored, prepared, and served in various kinds of eating places.

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Pipes and plumbing systems
Pipes and plumbing systems

By Herbert S. Zim

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Introduces various types of pipes and plumbing systems and how they work.

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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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