Sean Michael Flynn Books

Land of the radioactive midnight sun

By Sean Michael Flynn

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The Fighting 69th

By Sean Michael Flynn

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The Fighting 69th

By Erik Steele, Sean Michael Flynn

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The Fighting 69th

By Sean Michael Flynn

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The Fighting 69th

By Sean Michael Flynn

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One of the most celebrated units in the military for more than a century, by 1990, New York City's Fighting 69th Infantry Regiment of the Army National Guard was scarcely fit for duty. Its equipmen...

Land of the Radioactive Midnight Sun

By Sean Michael Flynn

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The Fighting 69th

By Sean Michael Flynn

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The Fighting 69th

By Sean Michael Flynn

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The Fighting 69th

By Sean Michael Flynn

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The Fighting 69th Lib E: One Remarkable National Guard Unit's Journey from Ground Zero to Baghdad

By Sean Michael Flynn

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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.