Samuel M. Katz Books

Days of Fire

By Samuel M. Katz, Samuel Katz, Shmuel Katz

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Guards without frontiers

By Samuel M. Katz

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Soldier spies

By Samuel M. Katz

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Jihad in Brooklyn

By Samuel M. Katz

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The true story of a potentially devastating terrorist plot in New York City—and the heroes who risked their lives to prevent it.   On the morning of July 31, 1997, two young Palestinian...

Under Fire

By Samuel M. Katz, Jeff Gurner, Fred Burton

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The shield of David

By Samuel M. Katz

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Harpoon

By Samuel M. Katz, Nitsana Darshan Leitner

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Under Fire

By Samuel M. Katz, Fred Burton

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No Shadows in the Desert

By Samuel M. Katz

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No Shadows in the Desert

By Samuel M. Katz

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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.