Larry Loftis Books

Into the lion s mouth

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A biography of Dusko Popov, who, as "an operative for the Abwehr, SD, MI5, MI6, and FBI during World War II ... seduced countless women--including agents on both sides--spoke five languages, and wa...

Profit by Investing in Real Estate Tax Liens

By Larry B. Loftis

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Investing in Duplexes Triplexes and Quads

By Larry B. Loftis

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Code Name Lise

By Larry Loftis

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The Princess Spy

By Larry Loftis

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Code Name Lise

By Larry Loftis

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La princesa espia. La verdadera historia de Aline Griffith Condesa de Romanones

By Larry Loftis, Joan Soler

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Watchmaker s Daughter

By Larry Loftis

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Watchmaker s Daughter

By Larry Loftis

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Watchmaker s Daughter

By Larry Loftis

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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.