Sean Parnell Books

Outlaw Platoon: Heroes, Renegades, Infidels, and the Brotherhood of War in Afghanistan

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A lieutenant's gripping, personal account of the legendary U.S. Army's 10th Mountain Division's heroic stand in the mountains of Afghanistan--a vivid, action-packed, and highly emotional true story...

Outlaw platoon

By Sean Parnell

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Man of War: An Eric Steele Novel

By Sean Parnell

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"The first in a new military thriller series from the NYT bestselling author of Outlaw Platoon." --

Man of War: An Eric Steele Novel

By Sean Parnell

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"The first in a new military thriller series from the NYT bestselling author of Outlaw Platoon"-- Eric Steele is in an elite clandestine unit known simply as "the Program". Steele is on assignment...

Man of War: An Eric Steele Novel: The Eric Steele Series, book 1

By Sean Parnell

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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.