Alyn Brodsky Books

The kings depart:: The Saga of the Empire Judah Maccabee Created and his Heirs Destroyed

By Alyn Brodsky

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Madame Lynch & friend: A true account of an Irish adventuress and the dictator of Paraguay, who destroyed that American nation

By Alyn Brodsky

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Madame Lynch and Friend: The True Account of an Irish Adventuress and the Dictator of Paraguay Who Destroyed That American Nation

By Alyn Brodsky

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Grover Cleveland

By Alyn Brodsky

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"Grover Cleveland: A Study in Character is the first comprehensive study of our twenty-second and twenty-fourth president in nearly seventy years. The only Democrat elected to the presidency betwee...

The Great Mayor: Fiorello La Guardia and the Making of the City of New York

By Alyn Brodsky

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Benjamin Rush: Patriot and Physician

By Alyn Brodsky

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"While Benjamin Rush appears often and meaningfully in biographies about John Adams, Thomas Jefferson, and Benjamin Franklin, this legendary man is presented as little more than a historical footno...

Imperial Charade

By Alyn Brodsky

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Benjamin Rush

By Alyn Brodsky

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Benjamin Rush

By Alyn Brodsky

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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.