Donny O'Malley Books

Embarrassing Confessions Of A Marine Lieutenant: Operation Branding Iron, 2.1A

By Aaron Moshier, Josh Brown, Donny O'Malley, Donny O'Malley, Josh Brown, Aaron Moshier

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A Marine Infantry Officer confesses his lust for killing and f!cking everything in sight, his desire to beat his boss's face in and frag the battalion staff, his willingness to risk Afghan civilian...

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.

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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.