Graham Brown Books

Myfirst pop up book of opposites

By Graham Brown

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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...

The Pharaoh's Secret

By Graham Brown

Average: 0.00, 0 Ratings

The dazzling new novel in the #1 New York Times?bestselling NUMA Files series from the grand master of adventure. Kurt and Joe tangle with the most determined enemy they've ever encountered when a...

The Pharaoh's Secret

By Graham Brown

Average: 0.00, 0 Ratings

The dazzling new novel in the #1 New York Times?bestselling NUMA Files series from the grand master of adventure. Kurt and Joe tangle with the most determined enemy they've ever encountered when a...

The Pharaoh's Secret

By Graham Brown

Average: 0.00, 0 Ratings

The dazzling new novel in the #1 New York Times?bestselling NUMA Files series from the grand master of adventure. Kurt and Joe tangle with the most determined enemy they've ever encountered when a...

The Pharaoh's Secret

By Graham Brown

Average: 0.00, 0 Ratings

The dazzling new novel in the #1 New York Times?bestselling NUMA Files series from the grand master of adventure. Kurt and Joe tangle with the most determined enemy they've ever encountered when a...

Stanley Abbey and its estates 1151 c1640

By Graham Brown

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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 in the #1 New Yor...

The Rising Sea

By Graham Brown, Clive Cussler

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

Sea of Greed

By Graham Brown, Clive Cussler

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The NUMA crew must crack a baffling historical mystery in this thrilling novel from the #1 New York Times-bestselling grand master of adventure.After an explosion in the Gulf of Mexico destroy...

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.