Dan J. Marlowe Books

The name of the game is death.

By Dan J. Marlowe

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DOUBLE FASTBACK THE MUDDER

By Dan J. Marlowe

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FASTBACK CLAIRE

By Dan J. Marlowe

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Persian Prince was a great racehorse, but his glory days are gone. Now only Claire Whitcomb and her father believe in him. With her father in the hospital, can Claire get Prince in shape for one mo...

FASTBACK TURK

By FEARON

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FASTBACK THE SEARCH FOR EL CUCHILLO

By Dan J. Marlow

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Operation Drumfire

By Dan J. Marlowe

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"The minute Drake saw Karl Erikson coming toward him he knew he wasn't going to get much sleep for a while. Because every time special agent Erikson has a job too dirty and dangerous for one of Unc...

Operation Flashpoint CRNT

By Marlowe

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Operation stranglehold

By Dan J. Marlowe

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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.