David M. Toomey Books

Amelia Earhart s Daughters

By David M. Toomey, Leslie Haynsworth

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Stormchasers: The Hurricane Hunters and Their Fateful Flight into Hurricane Janet

By David M. Toomey

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"In September 1955, Navy Lieutenant Commander Grover B. Windham and a crew of eight flew out of Guantanamo Bay into the eye of Hurricane Janet swirling in the Caribbean: a routine weather reconnais...

The New Time Travelers

By David M. Toomey

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Weird Life The Search for Life That Is Very Very Different from Our Own

By David M. Toomey

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Introduces unusual life-forms and the scientists who search for them and traces the discoveries of unfamiliar life forms in extreme areas of the solar system.

Stormchasers

By David M. Toomey

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Vida extrana

By David M. Toomey, Josep Sarret I Grau

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Los nuevos viajeros en el tiempo

By David M. Toomey

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Stormchasers

By David M. Toomey

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Weird Life

By David M. Toomey

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New Time Travelers

By David M. Toomey

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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.