Robert J. Randisi Books

Full Contact

By Simone Signoret, Robert J. Randisi

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Murder Is the Deal of the Day

By Christine Matthews, Robert J. Randisi

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Sleuths Gil and Claire Hunt investigate the murder of three women, all of whom were killed in their homes while watching Claire's TV home-shopping show in St. Louis. The police have fingered Claire...

Eye in the Ring

By Robert J. Randisi

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The Steinway collection

By Robert J. Randisi

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The ham reporter

By Robert J. Randisi

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The ham reporter

By Robert J. Randisi

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Frontier Marshall

By Robert J. Randisi

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Deadly Allies

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Deadly allies II

By Robert J. Randisi, Susan Dunlap

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Tin star

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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.