Christopher L. Harbo Books

What s that shadow
What s that shadow

By Christopher L. Harbo

Average: 0.00, 0 Ratings

"Photographs and simple text present a variety of shadows and facts about how shadows are made"--Provided by publisher.

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Paper airplanes
Paper airplanes

By Christopher L. Harbo

Average: 0.00, 0 Ratings

"Provides instructions and photo-illustrated diagrams for making a variety of traditional paper airplanes"--Provided by publisher.

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Paper airplanes
Paper airplanes

By Christopher L. Harbo

Average: 0.00, 0 Ratings

"Provides instructions and photo-illustrated diagrams for making a variety of traditional and original paper airplanes"--Provided by publisher.

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Paper airplanes.
Paper airplanes.

By Christopher L. Harbo

Average: 0.00, 0 Ratings

"Provides instructions and photo-illustrated diagrams for making a variety of traditional and original paper airplanes"--Provided by publisher.

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Paper airplanes.
Paper airplanes.

By Christopher L. Harbo

Average: 0.00, 0 Ratings

"Provides instructions and photo-illustrated diagrams for making a variety of traditional and original paper airplanes"--Provided by publisher.

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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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