Mark Greaney Books

Tom Clancy s Full Force and Effect

By Mark Greaney

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Tom Clancy s Support and Defend Paperback Mark Greaney

By Mark Greaney

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Tom Clancy

By Mark Greaney

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The latest Tom Clancy Jack Ryan adventure thriller written by Mark Greaney, Clancy's last and most successful collaborator. Tom Clancy was as an undisputed master at blending exceptional realism an...

Tom Clancy s True Faith and Allegiance

By Mark Greaney

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Tom Clancy s True Faith and Allegiance INSPIRATION FOR THE THRILLING AMAZON PRIME SERIES JACK RYAN

By Mark Greaney

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Back Blast

By Mark Greaney

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Command Authority

By Tom Clancy

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In this Jack Ryan thriller, #1 New York Times bestselling author Tom Clancy delivers an electrifying story of intrigue, power, and a family with two generations of heroes….Decades ago, as a...

Tom Clancy s full force and effect

By Mark Greaney

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"A North Korean ICBM crashes into the Sea of Japan. A veteran CIA officer is murdered in Ho Chi Minh City, and a package of forged documents goes missing. The pieces are there, but assembling the p...

Tom Clancy s Support and defend

By Mark Greaney

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Tom Clancy

By Mark Greaney

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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.