Ray Spangenburg Books

The story of America's railroads

By Spangenburg Ray

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Traces the history of railroads in America, focusing on the technology, people, and life on the railroads.

The story of America's tunnels

By Spangenburg Ray

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Traces the history of tunnel-building in America, from the earliest days of the Schuylkill Navigation Tunnel to the complex technology of today's immersed-tube tunnels.

The story of America's bridges

By Spangenburg Ray

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Traces the history of bridges in America, focusing on the people and technology involved in the construction of wooden, iron, suspension, cantilever, and modern-day bridges.

Rita Levi Montalcini

By Ray Spangenburg, Lisa Yount, Diane Kit Moser

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Robert Ballard Makers of Modern Science

By Ray Spangenburg, Lisa Yount, Diane Kit Moser

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Alfred Wegener

By Ray Spangenburg, Lisa Yount, Diane Kit Moser

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Alan Turing

By Harry Henderson, Ray Spangenburg, Diane Kit Moser

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Richard Feynman

By Harry Henderson, Ray Spangenburg, Diane Kit Moser

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Chien Shiung Wu

By Ray Spangenburg, Richard Hammond, Diane Kit Moser

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Niels Bohr

By Ray Spangenburg, Spangenburg Ray, Diane Kit Moser

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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.