Gregory Matusky Books

The best home-based franchises
The blueprint for franchising a business
50 things you can do to save American jobs
King Hussein
King Hussein

By Gregory Matusky

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A biography of Hussein I, King of Jordan from 1952 to the present.

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The U.S. Secret Service
The U.S. Secret Service

By Gregory Matusky

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Discusses the formation, history, and duties performed by the Secret Service.

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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.

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