Michael A. DiSpezio Books

Awesome experiments in force & motion

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Provides more than fifty experiments illustrating the properties of force and motion including gravity, inertia, and density.

Awesome experiments in light & sound

By Michael A. DiSpezio

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Presents over seventy experiments designed to demonstrate the properties of light and sound and explain the science behind them, covering such topics as wavelengths, color spectrums, vibration, and...

Map Mania

By Michael A. DiSpezio

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Visual thinking puzzles

By Michael A. DiSpezio

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Challenging critical thinking puzzles

By Michael A. DiSpezio

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Dino Mania

By Michael A. DiSpezio

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Optical illusion magic

By Michael A. DiSpezio

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Contains information about different types of optical illusions, and features color illustrations of afterimages, impossible faces, flip-flopping faces, bent lines, imaginary patterns, and other il...

Optical Illusion Magic

By Michael A. DiSpezio

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Optical Illusion Experiments

By Michael A. DiSpezio

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Simple Optical Illusion Experiments with Everyday Materials

By Michael A. DiSpezio

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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.