Jerry Schad Books

Physical Science
Physical Science

By Jerry Schad

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California deserts
California deserts

By Jerry Schad

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Wilderness Basics
Wilderness Basics

By Jerry Schad

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Top Trails Los Angeles
Top Trails Los Angeles

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Afoot afield San Diego County
Afoot afield San Diego County

By Jerry Schad

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xix, 484 pages : 23 cm

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50 best short hikes
50 best short hikes

By Jerry Schad

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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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