Graham Brown Books

The Rising Sea

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Everywhere, waters are rising--and that's just the beginning of the world's peril unless the NUMA crew can beat the clock in this thrilling #1 New York Times-bestseller from the grand master of adv...

Sea of Greed

By Graham Brown, Clive Cussler

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The world's oil supply is vanishing, the stock market is plummeting, and the key to saving the future seems to be a baffling historical mystery. Can the NUMA crew crack it in time? Sea of Greed is...

Fast Ice

By Graham Brown, Clive Cussler

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Kurt Austin races to Antarctica to stop a chilling plot that imperils the entire planet in the latest novel from the #1 New York Times-bestselling Grand Master of Adventure.In the early days of Wor...

The Pharaoh's Secret

By Graham Brown, Clive Cussler

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When the NUMA crew is exposed to a dangerous toxin, Kurt Austin and Joe Zavala will stop at nothing to find a cure foretold by Ancient Egyptian lore in this exhilarting novel from the #1 New Y...

Nighthawk

By Graham Brown, Clive Cussler

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THE NEW YORK TIMES BESTSELLERNUMA crew leaders Kurt Austin and Joe Zavala must beat the clock to stop the world’s most dazzling new technological advance from becoming mankind’s last in...

Sea of Greed

By Graham Brown, Clive Cussler

Average: 0.00, 0 Ratings

The world's oil supply is vanishing, the stock market is plummeting, and the key to saving the future seems to be a baffling historical mystery. Can the NUMA crew crack it in time? Sea of Greed is...

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.