Ellen Prager Books

Furious Earth: The Science and Nature of Earthquakes, Volcanoes, and Tsunamis

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"Today, advanced technology is enabling us to drill, measure, monitor, sample, and image the Earth and its motions as never before, dramatically improving our scientific understanding of these powe...

Chasing Science at Sea: Racing Hurricanes, Stalking Sharks, and Living Undersea with Ocean Experts

By Ellen J. Prager

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Sex, Drugs, and Sea Slime: The Ocean's Oddest Creatures

By Ellen J. Prager

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Adventure on Dolphin Island

By Ellen Prager

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Earthquakes and Volcanoes The Restless Earth

By Ellen Prager, Ellen J. Prager

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Sand

By Ellen J. Prager

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Describes the formation of sand from materials such as coral, rock, or crystals and shows how it can be moved through water, wind, ice, and other erosion agents.

Volcano

By Nancy Woodman, Ellen Prager, Ellen J. Prager

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Earthquakes

By Ellen Prager

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Growing up Galapagos

By Ellen Prager

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Sea slime

By Ellen J. Prager

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"Snails and sea slugs use Sea Slime. But, did you know that coral and clownfish need slime too? Marine scientist Ellen Prager takes us deep into the sea to introduce us to fascinating and bizarre a...

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.