Robert I. Friedman Books

Red Mafiya: How the Russian Mob Has Invaded America

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"The black-market corruption of the Brezhnev era proved the perfect breeding ground for organized crime. Beginning in the 1970s, Soviet emigres - including a large number of felons and murderers th...

Red Mafiya

By Robert I. Friedman

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Zealots for Zion

By Robert I. Friedman

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Zealots for Zion

By Robert I. Friedman

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Russische maffia Midprice

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Red Mafiya

By Robert I. Friedman

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The False Prophet Rabbi Meir Kahane

By Robert I. Friedman

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Zealots for Zion

By Robert I. Friedman

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"Who are the Jewish settlers on the West Bank? How will they respond to the newly elected Labor government's call for a freeze on continued settlements? And how will they influence the prospects fo...

The false prophet

By Robert I. Friedman

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The false prophet

By Robert I. Friedman

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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.