Robert Greer Books

The Devil s Hatband C J Floyd Mysteries

By Robert Greer

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The Devil s Red Nickel C J Floyd Mystery

By Robert Greer

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The devil s backbone

By Robert O. Greer, Robert Greer

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The fourth perspective

By Robert O. Greer, Robert Greer

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"C.J. Floyd, the streetwise, Denver-based bail bondsman and Vietnam vet, gets embroiled in an investigation that reaches back to the building of the transcontinental railroad, leads him to a famous...

The Devil s Backbone

By Robert O. Greer, Robert Greer

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"CJ Floyd, the streetwise, Denver-based bail bondsman and Vietnam vet, investigates the death of a rodeo star, unearthing a trail of land and diamond mining deals and greed that points to the mount...

The Mongoose Deception C J Floyd Mysteries

By Robert Greer

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Fourth Perspective

By Robert Greer

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Devil s Red Nickel

By Robert Greer

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Mongoose Deception

By Robert Greer

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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.