Paul W. Hodge Books

Physics and Astronomy of Galaxies and Cosmology

By Paul W. Hodge

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Concepts of the Universe

By Paul W. Hodge

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Concepts of Contemporary Astronomy

By Paul W. Hodge

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viii, 517 p., [3] leaves of plates : 24 cm

Meteorite Craters and Impact Structures of the Earth

By Paul W. Hodge, Paul Hodge

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During its five-billion-year history, Earth has been hit countless times by asteroids and meteorites. Where can you come face-to-face with these scars from cosmic debris? They are found on every co...

Galaxies and the Cosmic Frontier

By William H. Waller, Paul W. Hodge

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Galaxies

By Paul W. Hodge

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Inter planetary dust

By Paul W. Hodge

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Higher Than Everest

By Paul W. Hodge

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The Andromeda Galaxy

By Paul W. Hodge

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An Atlas of Local Group Galaxies Astrophysics and Space Science Library

By Paul W. Hodge, Joy Ashizawa, Brooke P. Skelton

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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.