Gary Lovisi Books

Murder of a Bookseller

By Gary Lovisi

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The plot against Sherlock Holmes

By Gary Lovisi

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"When Sherlock Holmes finds himself enmeshed in the most deadly case of his career, it threatens to bring terrible doom upon him and his friend Doctor John H. Watson. A deadly nemesis from his past...

Sherlock Holmes Mystery Magazine 28

By Victoria Weisfeld, Gary Lovisi

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Sherlock Holmes in Oz

By Gary Lovisi, Lucille Cali

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Man in a Hurry and Other Fantasy Stories

By Gary Lovisi, Alan Nelson

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The Mind Masters Jon Kirk of Ares Book 4

By Gary Lovisi

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The Time Masters Jon Kirk of Ares Book 5

By Gary Lovisi

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Sicilian

By Gary Lovisi

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Invisible Men

By Gary Lovisi

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Space Men

By Gary Lovisi

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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.