Jack Du Brul Books

Clive Cussler The Sea Wolves

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Detective Isaac Bell battles foreign spies, German U-boats, and an old nemesis to capture a secret technology that could alter the outcome of World War I in the latest adventure in the #1 New York...

Detective Isaac Bell faces an attack on the Federal Reserve in an all-new adventure in the #1 New York Times bestselling series from Clive Cussler.In the summer of 1914, Isaac Bell attends a privat...

The Titanic Secret

By Clive Cussler, Jack Du Brul

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When Isaac Bell attempts to decipher the forbidding deaths of nine men, he encounters a secret so powerful it could dictate the fate of the world in this riveting thriller by the #1 New York Times-...

The Titanic Secret

By Clive Cussler, Jack Du Brul

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The Titanic Secret

By Clive Cussler, Jack Du Brul

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Charon's Landing

By Jack Du Brul

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Vulcan's Forge

By Jack Du Brul

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The Medusa Stone

By Jack Du Brul

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River of Ruin

By Jack Du Brul

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In the heart of Panama, a volcanic lake feeds a serpentine river—its stone banks laid by the Inca, who took back the gold and jewels plundered from them by the conquistadors. Legend has it th...

Deep Fire Rising

By Jack Du Brul

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USA Today bestselling author Jack Du Brul brings back geologist-adventurer Philip Mercer for an apocalyptic adventure.  Hired to lead the excavation of caverns deep beneath Area 51,...

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.