Michael A. Ledeen Books

Tocqueville on American character

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"In 1831 Alexis De Tocqueville, a twenty-six-year-old French aristocrat, spent nine months traveling across the United States. From the East coast to the frontier, from the Canadian border to New O...

The War Against the Terror Masters: Why It Happened. Where We Are Now. How We'll Win.

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D Annunzio

By Michael Ledeen, Michael Arthur Ledeen

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First duce

By Michael Arthur Ledeen

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West European communism and American foreign policy

By Michael Arthur Ledeen

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Superpower Dilemmas

By Michael Ledeen, Michael Arthur Ledeen

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Intervista sul fascismo

By Renzo De Felice

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D Annunzio

By Michael Ledeen

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Accomplice to evil

By Michael Arthur Ledeen

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D Annunzio

By Michael Ledeen

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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.