Sean M. Grady Books

Discusses the history and development of tectonic theory; how tectonics helps scientists predict earthquakes and volcanic eruptions; and how engineers can apply this knowledge to mining, cartograph...

Ships

By Sean M. Grady

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Discusses the history and development of the ship, its influence on trade, types of ships, and the future of the ship.

Submarines : probing the ocean depths

By Sean M. Grady

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Discusses the development of submarines and the history of their uses.

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.