Leon T. Hadar Books

Quagmire

By Leon T. Hadar

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Quagmire

By Leon T. Hadar

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With the disappearance of the Soviet Union and the end of the Cold War, is there any remaining reason for the United States to be a major participant in Middle Eastern politics? Leon Hadar says no...

The Last Democrat. Why Bill Clinton Will Be The Last Democrat Americans Elect President.

By R. W. Bradford, Randal O Toole, Leon T. Hadar, Et Al, Richard D. Fisher, Chester Alan Arthur, Jr. Fred L. Smith, Caroline Baum, Victor Niederhoffer

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Sandstorm

By Leon T. Hadar

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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.