Campbell Rick Navy Commander Books

Empire rising

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"Xiang Li Cheng, the President of the People's Republic of China, has both a problem and a plan. The problem is that the limited supply of oil available to China is threatening to derail his countr...

Blackmail

By Campbell Rick Navy Commander

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"The U.S. aircraft carrier patrolling the Western Pacific Ocean is severely damaged by a surprise salvo of cruise missiles. While the Russian government officially apologizes, claiming it was the r...

Ice Station Nautilus

By Campbell Rick Navy Commander

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"Russia's new ballistic missile submarine, Yuriy Dolgorukiy, is being deployed on its first patrol while America's newest fast attack submarine, North Dakota, is assigned to trail it and collect in...

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.